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File size limit or duration limit with Nano Flash

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Scott DavisFile size limit or duration limit with Nano Flash
by on Jan 16, 2012 at 9:16:05 pm

I have some media that was recorded on the Nano Flash. It seems that there is a file size or duration limit as 3.7Gb is the largest file size (and there are numerous ones this exact size) or 4:54:15 in duration. Is this a setting set wrong by the camera operators or is this inherent to the Nano Flash?

Scott Davis
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Michael PalmerRe: File size limit or duration limit with Nano Flash
by on Jan 16, 2012 at 11:19:10 pm

Tha Nano uses a PC FAT 32 file system So you are getting the largest possible file size.

Good Luck
Michael Palmer


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Dan KeatonRe: File size limit or duration limit with Nano Flash
by on Jan 16, 2012 at 11:19:35 pm

Dear Scott,

For many reasons, we limit file size to 3.72 GB.

We define a Clip as a recording, and we break this up into smaller size files, no larger than 3.72 GB.

We do this maninly to maintain compatibility with the Mac and PC, which both support FAT32 easily, no add-on drivers needed.

We also do this for safety. If there is a file corruption, which is unlikely, then only the small file is lost. If you are recording for hours, which the nanoFlash can do, and you run out of battery power, only the last file is lost.

We have programs that will stitch these small files into a larger one.

But, one can drag and drop the group of small files and drop them into a timeline, in one operation. Then in many editors you can group these files together.

I hope this helps.

Dan Keaton
Director of Sales and Marketing
Convergent Design


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Scott DavisRe: File size limit or duration limit with Nano Flash
by on Jan 17, 2012 at 12:40:50 pm

Thanks guys! One other question. Is the XDCAM 50Mbs a long GOP format or is it I-frame?

Also, you guys are in CO, right? I grew up in Winter Park, CO.

Scott Davis
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Michael PalmerRe: File size limit or duration limit with Nano Flash
by on Jan 17, 2012 at 1:45:43 pm

You have the choice of I-frame @100Mbps, 50Mbps is only Long GOP

Good Luck
Michael Palmer


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