I have the 64Gb in camera at the moment on a tree of death and so far its spanning (Update: achieved 56 mins 30 secs ;-)). The card from new, suggests 56minutes on Quantum v4's 1080p24 H setting. Two hours for the L setting. An hour at this will use 1 block of power consumption.
See png graphic (starting from 00001.mts to 00015.mts), each file was 3mins 53 secs long, resolving 147 Mbps bitrate recordings on Quantum's 154Mbps bitrate setting. All recordings good. H setting won't playback in camera (not surprised), L setting will (which suggests if you are switching to the quality shots, record first with L setting to test settings and playback infield, then go into H). L setting no probs with 80% slow mode. H gets to around 19 seconds before stops.

We can now get i frames over the 800,000 bytes size on avg continuous recordings. And I shall be pleased if we can reach 840,000 bytes on the Death charts before recordings stop. 860,000 bytes will stop around 17 secs on 176M. 810,000 is good at 154M for over 30 secs so far.


From today, I will be able to confirm and see how far this card on the frame limits can be pushed with Quantum. Nick

On 64 95M I am getting the CANNOT RECORD. FILE NUMBER EXCEED LIMIT regardless of the patch I am using and regardless of the max iso, spanning, or Pal/NTSC settings, every time when 29.59 is reached and power cycle performed. Has anyone come up with any solution yet?

I can confirm also piotremanuel problem and its solution with Sandisk 64 GB 95MB/s

I recorded until twenty minutes. In my opinion, the problem appears when we get recordings with spanned files, not only with 30 mins recordings. To avoid the problem it must record a short clip after the spanned stream and before shut down GH2

@balazer Once it happens you cannot record any further until you dump the files to your disk and format the card, so it's worth remembering to record a short clip afterwards. I haven't had the chance to test it with other cards but I suspect it's not card related.

The sandisk performs just like the 32 class 10 and will not span.

@Swiss_Boy
Correct. It will not span and will fail in most situations at the same point as the transcend 32g class 10.

If you look at my graphic above, in my few days back post, the card was first recorded with a small file, then the long 55 min recording. Later (nearly an hour later) I recorded another small file. Never got the error msg.

Sorry to go a bit off topic but have anyone compared it to the Panasonic version?
http://www.bhphotovideo.com/c/product/767637-REG/Panasonic_RP_SDU64GE1K_64GB_SDHC_UHS_1_Memory_Card.html
It's more easily available but also a little more expensive unfortunately.

I finally got my big bad sandisk 64gb 95mb sec card. Results with quantum 7:

24p: spans without issue. plays back in camera. Tested only on highest setting. Lens 14-140 with zoom, af, ois

720p: initially this died with card write error in a few seconds on both sh and h setting. Lens same as above. Also failed with manual focus and ois off. Onr test went for a couple of minutes with the camera motionless before failing.

with 20mm lumix and af worked without issue. Did not yet test spanning.

.

1080i: 14-140 per above. worked without issue. Did not yet test spanning.

@chauncy - o thats a shame well my be the Sequake is its limit. I suppose Driftwood can do most testing and tweaking with the buffers and bit rate, which should improve things

@chauncy was that 720p50 or 60?

32GB San Disk 95mb/s - Just an update I was wrong, I left my cam rolling on a shot of some oranges, and it spanned fine on Quantum v2, it also spans on shots with movement. BUT it cuts off if there is any camera movement at all on all other Quantum patches. Stay away from the 32s if you want spanning except Q v2.