Storage Thu, 26 Nov 15 19:44:06 -0700 Storage en-CA SD cards speed tests Wed, 09 May 2012 07:50:51 -0600 humpman 3152@/talks/discussions Here are the simple instructions.

  1. Download HD_Speed zip file from
  2. Extract the HD_Speed.exe executable from the zip file and start it. It may hang for a while (Not Responding) when it starts up because it is scanning your system for drives but eventually will become available.
  3. Set the parameters to Bits/Sec, BlockSize=32KB, Mode=Write and Duration 01:00.
  4. Insert your blank SD card in your computer. HD_Speed will destroy all data on your card.
  5. Choose the appropriate drive letter in HD_Speed and run the test. Be careful here, don't choose your other drives. When you're done, you'll want to format your card before using it.
  6. Report your results in Mbps along with the following information:
  • Card Reader
  • Card Brand
  • Card Type (SD or SDHC or SDXC)
  • Card Class
  • Card Size (in GB)
  • Date Purchased
  • Card Write Speed (in Mbps) Current and Average
XQD Performance Tue, 27 Oct 2015 14:52:00 -0600 MikeLinn 13993@/talks/discussions

Nifty Thunder Rocket - Thunderbolt 2 SSD 1250MB/s read/write Mon, 19 Oct 2015 10:11:48 -0600 jmc 13961@/talks/discussions I just came across this from a company called Nifty. It's a Thunderbolt 2 SSD drive with similar read/write speeds to Lacie's LBD, but much smaller, fanless, bus powered and lower priced. It's aimed at 4K raw editing and ships in November but strangely there seems to be little or no info about it other than on the website:


I always wondered why there was a lack of Thunderbolt SSDs/enclosures on the market - I assumed it was to do with licensing to certain manufacturers, but that was just a hunch. I know there are a few around now from Lacie and the like, but all seem to be very expensive still and most aren't Thunderbolt 2 yet. This seems to be a step in the right direction, and I like the fact that it's PCIe rather than 2.5", but can anyone actually vouch for the company? And how likely it will live up to its read/write speed claims?

Lexar 2000x SDXC cards, 260MB/write, 300MB/read Sat, 17 Oct 2015 02:22:22 -0600 Vitaliy_Kiselev 13948@/talks/discussions image

Lexar announced the 128GB capacity of the Professional 2000x SDXC™ UHS-II memory card. Available for purchase later this year, the 128GB Lexar® Professional 2000x SDXC UHS-II card will be the fastest UHS-II memory card available at this capacity on the market.

Leveraging the Ultra High Speed II, UHS Speed Class 3 (U3) specification, the Lexar Professional 2000x SDXC card quickly captures and transfers extended lengths of 4K, 1080p full-HD, and 3D video, as well as high-quality images. The new 128GB capacity card offers read transfer speeds up to 300MB per second and write speeds up to 260MB per second.* Additionally, the Professional 2000x SDXC UHS-II card includes an SD UHS-II reader for high-speed file transfer of photos and videos from the card to any PC or Mac® system, dramatically accelerating workflow and offering users immediate performance right out of the package.**

“By delivering the fastest SDXC memory card with the highest capacity available on the market, Lexar is focused on providing professional videographers and photographers with the necessary tools to perform at new levels,” said Steffi Ho, product marketing manager, Lexar. “Demand for cinematography-grade video and images requires the ability to shoot, store, and transfer more content than ever on a single card, and the 128GB Lexar Professional 2000x SDXC empowers professionals to meet those demands.”

The Lexar Professional 2000x SDXC UHS-II card is backwards compatible with older cameras and readers, performing at UHS-I and Class 10 speeds. Additionally, all Lexar product designs undergo extensive testing in the Lexar Quality Labs to validate performance, quality, compatibility, and reliability with more than 1,100 digital devices. The card comes with a limited lifetime warranty*** and includes a lifetime copy of Image Rescue® software.**** The Lexar 128GB Professional 2000x SDXC UHS-II card will be available in October with an MSRP of $289.99/£224.99.

GH4 Memory Cards. What works and what doesn’t? Tue, 29 Apr 2014 12:22:28 -0600 mpgxsvcd 10276@/talks/discussions I have a GH4 and the following 7 memory cards. Listed in order of their theoretical speed. Some of these cards have failed with the “Motion Recording was cancelled due to the writing speed of the memory card” error message in the GH4 and some have not. If they failed then it was always in the stills mode while recording 1080p @ 60 FPS 200 mb/sec ALL-I video.

These cards all failed at some point

  1. Eye-Fi 8 GB Class 6
  2. Eye-Fi 16 GB Class 10
  3. Transcend 32 GB Class 10
  4. SanDisk 8GB Extreme SDHC 30 MB/sec Class 10
  5. Transcend 64 GB SDXC UHS-I Class 3(Gold Plated Label)

These cards have never failed despite my best efforts to make them fail

  1. Transcend 32 GB SDHC UHS-I Class 1
  2. PNY 64 GB 90 MB/sec UHS-I Class 1

Please post your experiences with different memory cards and the GH4. Please only comment if you have the GH4 and have tried the memory card with it. No comments like “This memory card is better so it must work”. Just actual tests that you have performed yourself.

Transcend UHS-II cards with 180MB/s write speed Thu, 01 Oct 2015 00:13:29 -0600 Vitaliy_Kiselev 13862@/talks/discussions image

Utilizing the new UHS-II bus standards with a UHS Speed Class rating of 3, Transcend SDHC/SDXC UHS-II U3 memory card rolls out the maximum read/write speed of up to 285/180 MB/s respectively. Consumers may consider Transcend multi-functional RDF9 card reader which is specifically designed for UHS-II memory cards. Professional photographers shooting in RAW or JPEG images and videographers filming in Full HD, 4K or 3D videos are assured uninterrupted consecutive shooting and smooth playback with the large storage capacity of up to 64GB supported.

Transcend SDHC/SDXC UHS-II U3 memory card is waterproof, static proof, X-ray proof and shockproof and capable of delivering peak performance under harsh environmental conditions and extreme temperatures ranging from -25 degrees C to 85 degrees C

mSata for desktops Sat, 01 Aug 2015 09:35:11 -0600 Jspatz 13489@/talks/discussions I noticed that mSata is considerably cheaper than SSD of similar specs and capacity. Is there any reson not to use them as a source drive for a video workstation? How to mount? Are there adapters? Would the USB3 speeddrives from Video Devices be fast enough?

CFAST2.0 to SSD adapter Mon, 18 May 2015 07:17:23 -0600 jazzroy 13001@/talks/discussions This is a kickstarter campaign from a guy who had this simple idea to solve CF2 high price problem:

I think that's great, but 499$ for basically a cable and a ABS dock is ridiculous in my opinion.

CFast storage Tue, 08 Apr 2014 18:18:37 -0600 mrbill 10110@/talks/discussions The new ninja star looks like a great way to get 10 bit 422 1080p out of the GH4. It uses type 1.0 cfast cards, and having googled myself stupid, I still can't find a source for the 256gb cards mentioned in the interview at nab. Anyone got any ideas for a supplier? Thanks.

Cheap SD-Card Shootout (vs SanDisk Extreme 45MB/s for GH2; GH1; GF1) Thu, 15 Jan 2015 17:08:12 -0700 MrZz 12183@/talks/discussions Hey @all! I was searching for a cheap alternative to the SanDisk 45MB/s Extreme Cards for use with Flowmotion v.2.02 on my GH2. I made a list which I will update now and then. I mostly also check for performance using the Fast-action 3GOP on GF1 and the Reliable In-Camera-Playback patch for the GH1. I used the "Death Screens" and also checked for spanning on those cards.


Hope this helps, Cheers

Secure storage solution on a travelling documentary shooting Sun, 01 Dec 2013 00:40:29 -0700 gameb 8931@/talks/discussions Early 2014 I will be shooting a documentary and travelling in Central America for about 2-3 months. I have two 2TB Western Digital USB 3.0 External hard drives, for storage and backing up copy on the go. But I was thinking, that after lets say 1 week, I will have so much important footage that it would be a desaster to loose any of it. Literally anything could happen in these countries.

I can see 3 options:

  1. Having somewhere in the region a central backup point, where I would take the footage and back it up every 1-2 weeks. But that will cost me a lot of money and time.
  2. Uploading somewhere in the cloud... The problem is, that the internet is very basic over there and also I don't know if its possible to upload this amount of data to any cloud-provider, lets say anywhere between 30-50 GB per day average.
  3. Hoping that nothing would happen and hiding always one of the hard drives far away from the other... Very risky. Anybody has some ideas?
Microdia touts 512GB MicroSD card for July 2015 Mon, 08 Jun 2015 15:44:52 -0600 karl 13141@/talks/discussions At Computex, Microdia announced to sell a 512GB MicroSD card in July 2015.

There is reasonable doubt that this claim will come true - after all, Microdia also claims to have a 256GB MicroSD card on sale which, mysteriously, is nowhere to be bought. So don't hold your breath - may well be a pure PR stunt.


SSD Price watch Tue, 28 Aug 2012 05:00:18 -0600 goanna 4389@/talks/discussions image

SanDisk Extreme SDHC Cards Sat, 14 May 2011 01:03:43 -0600 Vitaliy_Kiselev 90@/talks/discussions

Sources for SanDisk Extreme
1. Your local thrusted shop.
2. DealExtreme
3. Beware of eBay, as many are selling non-genuine SanDisk cards. Use only thrusted sellers.
Toshiba Exceria Pro SDHC cards, 240MB/s write speed Tue, 16 Jul 2013 08:00:31 -0600 Vitaliy_Kiselev 7529@/talks/discussions image

TOKYO—Toshiba Corporation (TOKYO: 6502) today announced that it will launch a new series of SD memory cards offering the world's fastest data write speed. The latest edition to its line-up of EXCERIA memory cards designed to offer users of high-end digital cameras an excellent experience, the EXCERIA PROTM1 and EXCERIATM1 cards will be launched in major markets worldwide, starting with Japan in October.

EXCERIA cards compliant with UHS-II will be available in two series. The EXCERIA PRO series will offer photographers a data write speed of 240MB/sec2 the world's fastest3, while the EXCERIA series will write at 120MB/sec. They will allow digital camera users to shoot still images continuously at high speed.

The cards are the first in the EXCERIA line-up to integrate a newly developed controller compliant with UHS-II4 the ultra high speed serial bus interface defined in SD Memory Card Standard Ver. 4.10, and they achieve significantly higher data transfer speeds than earlier UHS-I compliant cards5.

While digital cameras have made huge strides in image quality and versatility, users have long wanted to see improvements in data transfer rates and write times, so as to be able to takes bursts of photographs in quick succession. This demand has grown increasingly strong as high performance digital single-lens reflex cameras and mirrorless interchangeable-lens cameras have gained popularity and moved into the mainstream. Further advances in higher resolution image recording (including 4K2K video), will also fuel demand for transfers of data-rich images at high speed.

Looking to the future, Toshiba, a world leader in the NAND flash memory business, will continue to meet market demands by enhancing its line-up of UHS-II compliant SD memory cards.




USB 3.1 speed measurements Tue, 24 Mar 2015 22:24:48 -0600 Vitaliy_Kiselev 12664@/talks/discussions Sequential read (megabytes/s)


Sequential writing (megabytes/s)


Video recording (megabytes/s)


Is thunderbolt not preferred vs usb 3 Wed, 04 Mar 2015 09:50:13 -0700 tinbeo 12528@/talks/discussions In search of thunderbolt usage and P-V members. not seeing much discussion, like we all love usb3 and satisfied getiing work done. I bought a late 2012 macbook pro but nevet use it thunderbolt port -;). It's been almost 3 year now thinking the price of thunderbolt things like hard drive, enclosure. adapter woulg go down but it is not. Hope some one would give me some advice

Digital Storage Solutions Mon, 23 Feb 2015 16:23:54 -0700 MikeLinn 12447@/talks/discussions

2TB seagate expansion ext. usb3 Fri, 27 Feb 2015 19:15:30 -0700 jclmedia 12489@/talks/discussions I got my new 2tb seagate expansion drive today usb3 and plugged it into usb 3 and started transferring all my files over 800gb and it started off fast then went down to 30mb/s thats worse than my usb2. I remember installing usb3 drivers, I have no idea what to do, can someone help me????

ext hd recommendation Fri, 13 Feb 2015 14:45:34 -0700 jclmedia 12381@/talks/discussions this usb 2 fantom drive is so slow @ 33MB/sec . Ive been doin some research past few hours and ive come down to theses two that seem pretty good. well alot better than what I got right now, This fantom drive is 4-6 yrs old.

HDD survival rates by manufacturer Tue, 21 Jan 2014 14:11:39 -0700 Vitaliy_Kiselev 9414@/talks/discussions image


ADATA SE700, USB 3.1 SSD, 840Mb/s write speed Mon, 12 Jan 2015 18:57:59 -0700 Vitaliy_Kiselev 12163@/talks/discussions image

ADATA has USB 3.1 host interface, and its new Type-C connector standard. This isn't just a blind compliance upgrade, but one that comes with genuine benefits. To begin with, the drive offers sequential transfer rates of up to 819 MB/s, with up to 839 MB/s writes, which show that the drive clearly takes advantage of the 10 Gb/s interface bandwidth. Internally, the SE700 is a host-transparent RAID 0 array of two SSDs. The drive itself is roughly as big as a 2.5-inch internal SSD, featuring a piano black body with chrome accents.

Patriot UHS-II EP PRO-II SDXC with 250Mb/s write speed Tue, 06 Jan 2015 09:29:44 -0700 Vitaliy_Kiselev 12115@/talks/discussions image

Will be available at 16gb, 32gb and 64gb sizes.

Price from $120 to $200.

Insert SD card again error Tue, 09 Dec 2014 09:30:04 -0700 LongJohnSilver 11925@/talks/discussions I'm getting very often the "Insert SD card again" error on one of my GH2 camera. I tried ro format in camera several times with no luck. The card seems to work with other camera/reader and the camera seems to work with other SD cards. Sometimes it happens whn powering the camera with sd inside.

Any suggestion?

San disk extreme plus cards? compatability Sun, 30 Nov 2014 12:05:20 -0700 einstein7 11876@/talks/discussions Just wondering if anyone has tried the san disk extreme plus 128 GB on the bmpcc?? I know its not on the suppprted A list and all but Nice size if it works esp with raw... Someone benched it at 50MBs write vs the extreme pro's 68 which matches what I got link below.

SanDisk 64GB Extreme Pro SD 95MB/s UHS-I SDXC Memory Card for GH4? Sun, 30 Nov 2014 23:27:09 -0700 club_irate 11878@/talks/discussions Hi,

I ordered 2 of these cards recently for my Moon 7 hacked GH2 and now i urgently need to upgrade to a GH4 setup. I wanted to know whether these cards work well without any freezes or issues on all modes of video on the GH4 including the 4K 100 mbps and FULL HD 200mbps modes? (attaching a pic of the cover of the card i have which has the exact model look and details on it.

Panasonic GH2 with UHS-I and SDXC Tue, 12 Jul 2011 11:22:01 -0600 madact 371@/talks/discussions
I've a couple of reports of SD UHS-1 working with the GH2 (a couple on this forum, one elsewhere, and is actually bundling the GH2 with a UHS-I card), and UHS-I is faster than SDHC class 10, so it would seem to be the logical choice when pushing the bitrate limits.

However, there are also a couple of reports of UHS-I cards performing similar to a SDHC class 6. Also linked from the GH2 hack thread was this test:,2940-12.html which seems to indicate current UHS-I cards may have slower continuous write speed than speed class 10 (though they have much faster read).

Also, the GH2 is compatible with SDXC according to the spec on the Panasonic website - but I see no discussion of results here yet.

This topic is to report experiences with UHS-I and/or SDXC cards. Please state the normal make / model / speed class info, and also whether the card has been verified to operate at the specified speed in another device.]]>
SanDisk-bad quality housing. Fri, 17 Oct 2014 07:15:01 -0600 Maciek 11578@/talks/discussions Couple months ago, one of my friends warned me of bad quality of SanDisk SD cards. He said that he had to use a glue because his card had falen apart. And in general, people he knew, complain about their build quality. One month ago one of mine cards housing had broken. I didn't know when and why it happened. I have to explain that I use safe box for sd cards. Today another SanDisk card has fallen apart. It looks like they do not use proper glue to keep all parts of sd card together. Kingston cards, that I use longer than SanDisk cards, never has fallen apart, nor had been broken or something. Most people at Personal View recommend SanDisk cards for patches like Driftwood's Moon, Spizz, Nebula. I'd like to know, are there fast cards of other brands to use with these patches safetly, because i'm loosing trust for SanDisk cards.

What do you think about that:

CFast card reverse engineering Tue, 14 Oct 2014 06:59:51 -0600 Pedro_Miguel 11547@/talks/discussions sata 2.5 hard drive connected to atomos cfast usb card reader today i was able to conect an sata 2.5 hard drive to a atomos cfast usb card reader, just because the data transfer pins are the same as a sata drive, so easy. now is simple to plug your sata drives to Atomos ninja star, just make and female to female sata cable . and no more exepensive cfast cards, just unexpensive sata 2.5 hard drives.

Power just add a sata power plug , or make an female to female sata power cable.

SDHC UHS Speed Class 3 cards for 4K Wed, 06 Nov 2013 21:40:01 -0700 Vitaliy_Kiselev 8688@/talks/discussions

SD Association have announced a new high-performance option and symbol specifically designed to support a wide array of 4K2K television and video products.

A new Ultra High Speed (UHS) Speed Class 3 (U3) symbol will indicate products capable of recording 4K2K video and will operate exclusively on SDXC UHS-I and UHS-II memory cards and devices and SDHC UHS-I and UHS-II memory cards and devices.

The UHS Speed Class 3 defines a sizzling fast 30 Megabytes per second constant minimum write speed to ensure high-quality video recordings. This means 4K2K video, live broadcasts and content can be recorded on high-performance cameras such as Digital Single Lens Reflex (D-SLR), Digital Single Lens Mirrorless(DSLM), camcorders and video cameras and then played back smoothly. Consumers will benefit from a single card that is capable of meeting all of their video, photo, music, document and data storage needs.

“The world’s favorite SD memory card continues to evolve and meet shifting industry needs,” said Brian Kumagai, president of the SD Association. “Our new UHS Speed Class 3 standard will give consumers and businesses more flexibility and capability as the market shifts to 4K2K video formats. Both SDXC and SDHC memory card standards already offer the massive storage needed to support 4K2K video with enough room to store photos, music, documents and other data on a single portable card.”

New devices offering the UHS Speed Class 3 will be backwards compatible and will work with existing SD memory cards.

New standard speed between the memory card and the device can be up to 312 Megabytes per second.