Storage Sat, 28 Mar 15 03:16:51 -0600 Storage en-CA 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)


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.
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
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????

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

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


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

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.

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.

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.

Anyone Using SDHC Lexar Professional 32GB Class 10, Class UHS-i 600x Speed 90mbs? Sat, 13 Sep 2014 07:39:14 -0600 producer 11269@/talks/discussions Any impressions, please?

Sandisk 512GB SD Card Thu, 11 Sep 2014 15:51:44 -0600 Vitaliy_Kiselev 11256@/talks/discussions image


SanDisk Corporation (NASDAQ: SNDK), a global leader in flash storage solutions, today launched its 512GB** SanDisk Extreme PRO SDXC UHS-I memory card, the world’s highest capacity SD™ card on the market. The new offering is designed to meet the demands of industry professionals who require the most advanced gear available for shooting 4K Ultra High Definition (3840x2160p) video, Full HD video (1920x1080)1 and high-speed burst mode photography.

“As an industry leader, SanDisk continues to push the boundaries of technology to provide customers with the innovative, reliable, high-performance solutions they have come to expect from us,” said Dinesh Bahal, vice president, product marketing, SanDisk. “4K Ultra HD is an example of a technology that is pushing us to develop new storage solutions capable of handling massive file sizes. The 512GB SanDisk Extreme PRO SDXC UHS-I card is a tremendous advancement that enables professionals to reliably store more content on a single card than ever before.”

Built for the Pros

Since SanDisk unveiled its first 512MB SD card in 2003, capacity demands have increased exponentially and the new 512GB SanDisk Extreme PRO SDXC UHS-I card represents a 1,000-fold capacity increase in just over a decade, yet maintains the same size footprint. SanDisk’s most powerful and highest capacity SD UHS-I memory card yet, the 512GB card delivers write speeds up to 90 MB/s* and UHS Speed Class 3 (U3) recording speed for high resolution, real-world color and stutter-free 4K Ultra HD video1. Transfer speeds up to 95 MB/s* move data quickly for efficient post-production workflow. The 512GB SanDisk Extreme PRO SDXC UHS-I card delivers both the speed and capacity needed to support 4K Ultra HD video capture, enabling users to shoot tremendous amounts of content without disrupting the moment.

Pricing and Availability

The SanDisk Extreme PRO UHS-I SDHC/SDXC memory cards are available worldwide in capacities of 512GB, 256GB and 128GB. The 512GB Extreme PRO SDXC UHS-I card will be available for $799.99 (MSRP). For more information, please visit

Benefits to 280MB/s SD cards for GH2 (or other camera) users? Thu, 28 Aug 2014 14:19:51 -0600 matt_gh2 11150@/talks/discussions Anyone know if there's any benefit to those 280 MB/s SD cards for GH2(or other camera) users? I've been using the Sandisk 64GB 95MB/s without much trouble, but wondered if the faster 280 MB/s cards might increase the possibility for in-camera playback on settings/patches that sometimes don't playback on the 95 MB/s cards? Any other benefits to these 280 cards? Thanks.

How Long Do CDs Last? Thu, 21 Aug 2014 00:40:30 -0600 Vitaliy_Kiselev 11086@/talks/discussions

Back in the 1990s, historical societies, museums and symphonies across the country began transferring all kinds of information onto what was thought to be a very durable medium: the compact disc.

Now, preservationists are worried that a lot of key information stored on CDs — from sound recordings to public records — is going to disappear. Some of those little silver discs are degrading, and researchers at the Library of Congress are trying to figure out why.

Testing found that not all CDs are the same. The outer coating of some CDs erodes, leaving a silver layer exposed. And when you leave silver exposed, it tarnishes.

"By increasing the relative humidity and temperature, you're increasing the rate of chemical reaction occurring,"

Researcher France says many of them can actually last for centuries if they're taken care of. "The fastest way to destroy those collections is to leave them in their car over summer," she says — "which a lot of people do."

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.

Wireless SSD for travelling Mon, 11 Aug 2014 06:43:56 -0600 mmmage 11022@/talks/discussions Dunno if this is the right place for this thread - sorry if it's not!

Our team is developing a external wireless solid state disk that can be used to backup SD/CF card, view and share the photos via iPad, especially quick preview and manage the large RAW files. So the photographer does not need have to bring a heavy laptop while traveling.

How do you think of such a device? Do you think if it is useful? Genuinely looking for feedback from the photography community, looking to discuss the project, get some ideas before we finial release it.

Are Extreme Pro cards really batter than Class 10? Sat, 05 Jul 2014 06:18:06 -0600 pukeko25 10728@/talks/discussions Since the GH2 is not compliant with the UHS-I standard (user manual), then surely the higher read/write speeds of the Extreme Pro cards would not be attainable in this camera. My understanding is that for non-compliant devices the card speed reverts to the Class 10 standard, i.e. minimum of 10 MB/sec. (from reading the release on the Transcend UHS-I Class 3).

Storage during a long traveling Thu, 19 Apr 2012 16:42:07 -0600 gabilourson 2949@/talks/discussions hello fellas, how do you back up your AVCHD rushes when you're traveling, and you can not carry with a computer? The solution is to take it a lot of cards with you? thanks gabi

About to edit my first feature: BMCC Prores. 5TB worth of footage.. need help with storage/edit etc Sat, 05 Apr 2014 19:00:45 -0600 azza_act 10075@/talks/discussions Hi guys, foolishly I didn't think about the storage or editing situation when it comes to editing a prores feature film. (worried about other things at the time) I've been looking around the web for options. I"m editing on a PC with a 2TB internal drive. 1TB for the O/S. Graphics card is the nvidia k5000. So i guess external RAID would be the best way to store and edit my film, using Pr CC. ( i guess). So just wondering if these Hard drive arrays would work.

or the


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?