Interesting @Zaven13 (probably because Seaquake is more constant than others) but could you offer some more indepth summaries?

@sid yes quantum v9b is stable with 64g sandisk 95m/s. i feel qv9b is better than seaquake. but for post and bitrate seAquake wins. but qv9b and seAquake will eat memory card so fast. i love quantum 100!! compromised on every side. a suggestion @driftwood sir, will you develop something which can give better quality than quantum 100 in 100 mbit range?? i feel 100mbit and less is always better. memory card space and time limitation problem is concerned a lot. will quantum 100 will get a new stage of quantum 100 v2???

@ jdn quantum v9c is not a stable one. its under development. still not finalized like 9b and 100. 129 mbit patch. not 100mbit. but sure in final version it will reach the expectation. lets see.

Thanks Driftwood! You're the spine of my Frankenstein GH2 setup.

@driftwood It's a very wonderful idea! Very interesting! I am also looking forward to the release of your final Quantum AVC Intra patch. :-)

@GH2_fan The answer is to invest in the proper memory card -- an even the very best hack (Quantum 9b) spans clips and is rock solid.

The card that pulls off everything is the Sandisk "Extreme Pro SDXC UHS-1" 64 gig, 95MB/s card. Only this one, other variants (like the 32 gig version) don't work. It relates to this card's file structure -- and it works flawlessly with the high bitrate patches. Both stability and spanning.

You can buy cheaper Sandisk cards (avoid generics like "aData" and "Transcend"), but that's where you run into problems with spanning. "Spanning" means you can hit record and the camera won't stop recording until the card fills up. Depending on your editor, the spanned files will import into your editor as one long clip. For example, this is flawless with Premiere Pro CS5.

Remember, memory cards are almost, almost like lenses -- invest well and they'll last you for many devices for several years to come. For example, I still have class 6 Sandisk Extreme Pro 30 MB/s cards from 2008 that have never once generated any error on any camera -- including HUNDREDS of hours of use on an old HMC-150. They don't work with Driftwood's Quantum 9b, obviously, but they did work for other lower bitrate hacks on the GH2. The point being -- don't go cheap on your media. Invest properly up front, and you'll get years of reliable use.

@MrEdd You see, this is what I'm talking about, because I've missed quite alot, I dont understand when you say 'Quantum' or in prevcious discussions, it was always about 50Mbit or 100Mbit but then 'AQ' came in after I didnt read for awhile, and started to get confused :( And for this new version, how does it differ to the current version as it is?

@onionbrain That was very informative, thanks for that, I myself own this 7DayShop 32GB Class 10 SDCard which at the moment hasnt failed me yet. I am aware to obviously invest well in my equipment and media. And what exactly do you mean your class 6 Sandisk Extreme Pro 30 MB/s cards dont work on your hacked GH2? what was the error in that?

@blackspot

I'm with you on the encoding. Vimeo's non-pro 720p uploads are fairly horrifying.

The clip was shot at 1600 ISO, and underexposed by about a stop and half. That gave me plenty of grain to form a decent profile with Neat Video. I tend to hate the sterilized look of denoised GH2 footage, so back in After Effects I placed a custom grain profile on top (made from actual 35mm scans of Kodak grain), which really helps to even things out again.

The CC is a bizarre combination of several LUTs and various contrast enhancers. It takes two minutes to render out each second of footage, but with a little bit more tweaking, I think that the results are more than worth it. I really love the anti-DSLR look the process gives my footage.

@MrEdd From what I'm gathering from you, I take it like there is 3 versions of Driftwood's Quantum? this being:

• Quantum 9b (why this being Best Quality?)

• Quantum 100 (what do you mean exactly when you mentioned Long Play and DocStyle?) &

• Quantum 50 (I take it that this is just an increased bitrate and Intra-frame?)

???

In general, does all of Driftwood's Quantum versions/patches apply for all the different recording modes? Thus will i have true Intra-frame recording at 1080i50? and quite possibly 25p if its available???

I did a few test with Q9c. - Shot a 40 min live performance in 1080p24 L ISO1600 with 14-140 in etc to a Sandisk 32GB 30MB/sec. Spand nice, no issues. - 1080p24 H ISO640, 1.7 20mm. Outside run and gun. Did Not test spanning. No errors - tried to shoot 720p50 snow falling. Failed.

Even if it is a joke, everyone asking for 4:2:2 is getting kinda old... It's gotta be grating on the ears of those who do the hacking.

@pinger007 - "Even if it is a joke, everyone asking for 4:2:2 is getting kinda old..."

LOL, yes, and it's hard to resist the temptation to prolong their torment. Here's a short, hopeless wish list of GH2 features that you'll have to find some way to live without::

1. 4:2:2/10-bit color
2. Live RAW HDMI output
3. 64-bit SD card file system
4. Anamorphic frame sizes in AVCHD mode
5. 24p frame rate in MJPEG mode