Corrupted files

[ferrarofilms]

Hi:

In the past, I recorded long files at night (8-10hrs, for animals) with GoPro and MFT, they did 4GB at the most and if the battery was exhausted, only the last file was corrupted and it was not that important since the action happened in the middle of the lapse.

I switched to Sony again recently (3rd time in 50 years) and I used first a ZVE10 for such purpose but I sold it after a month, for many reasons, it made 3.5 hrs files and yes, the last was corrupted but the action was in the previous ones.

Now I began to use one of my 6700 with the 11mm lens. The problem is that it builds a single 7+ hrs file in the SD card and when the battery gets exhausted, as it happened last night, the only file was corrupted when the camera went off (use a fan, btw).

The action was there, because I use a trailcam to checkit out but I was left with a 400GB RSV file that seems impossible to recover.

The option is to feed the camera by usb-dummy battery (as now) but with an ac power for usb. This forces me to carry 50m cables to the site and keep it from eventual rain.

The question: is it possible to produce shorter files when recording.

Thanks

 

[piticoto]

Hi:

In the past, I recorded long files at night (8-10hrs, for animals) with GoPro and MFT, they did 4GB at the most and if the battery was exhausted, only the last file was corrupted and it was not that important since the action happened in the middle of the lapse.

I switched to Sony again recently (3rd time in 50 years) and I used first a ZVE10 for such purpose but I sold it after a month, for many reasons, it made 3.5 hrs files and yes, the last was corrupted but the action was in the previous ones.

Now I began to use one of my 6700 with the 11mm lens. The problem is that it builds a single 7+ hrs file in the SD card and when the battery gets exhausted, as it happened last night, the only file was corrupted when the camera went off (use a fan, btw).

The action was there, because I use a trailcam to checkit out but I was left with a 400GB RSV file that seems impossible to recover.

The option is to feed the camera by usb-dummy battery (as now) but with an ac power for usb. This forces me to carry 50m cables to the site and keep it from eventual rain.

The question: is it possible to produce shorter files when recording.

Thanks

 

[ferrarofilms]

Not a time-lape, continuous recording…never said anything about a time lapse, 7hrs continuous recording at 4K25….

BTW, time lapse of an animal? Have you done that? Only if it moves as a worm, about 1m in 8 hrs.

sorry I was not enough explicit

 

[Dave981]

There's this:

https://www.reddit.com/r/videography/comments/12332lr/sony_xavc_s_hd_video_file_recovery

which refers to: https://github.com/anthwlock/untrunc

(I haven't tried it. let us know if it works)

edit -

are you using SDHC cards (max 32 GB) in the a6700? They're Fat32 (I think), and limited to 4GB files, whereas larger SDXC cards don't have this limit.

 

[sludge21017]

Never had a problem with GoPro and out of battery. It always finishes the file ( GPH7B and later).

There's some online rsv fixes.

Good luck.

 

[piticoto]

Not a time-lape, continuous recording…never said anything about a time lapse, 7hrs continuous recording at 4K25….

BTW, time lapse of an animal? Have you done that? Only if it moves as a worm, about 1m in 8 hrs.

sorry I was not enough explicit

--
Sony 6700, 11mm f1.8, 18-105, 200-600

7 hrs of 4k is more current consumption than time-lapse. Regardless of file size and memory needed, the camera should stop recording and save the file when battery is very low, as when overheated it will stop, save the file and then shut down. I have a portable battery large enough capacity 40k mAh with two USB ports at 3A each and two 110V AC, to charge a laptop twice, not a small battery for phones. If A6700 can get more current from the battery than the consumption it should last long enough to cover 7 hours. From Amazon, no brand, some Chinese manufacturer SinKeu. I used it for 2 and a half hours during the recent solar eclipse for time-lapse shooting.

 

[AlephNull]

Hi:

In the past, I recorded long files at night (8-10hrs, for animals) with GoPro and MFT, they did 4GB at the most and if the battery was exhausted, only the last file was corrupted and it was not that important since the action happened in the middle of the lapse.

I switched to Sony again recently (3rd time in 50 years) and I used first a ZVE10 for such purpose but I sold it after a month, for many reasons, it made 3.5 hrs files and yes, the last was corrupted but the action was in the previous ones.

Now I began to use one of my 6700 with the 11mm lens. The problem is that it builds a single 7+ hrs file in the SD card and when the battery gets exhausted, as it happened last night, the only file was corrupted when the camera went off (use a fan, btw).

The action was there, because I use a trailcam to checkit out but I was left with a 400GB RSV file that seems impossible to recover.

The option is to feed the camera by usb-dummy battery (as now) but with an ac power for usb. This forces me to carry 50m cables to the site and keep it from eventual rain.

The question: is it possible to produce shorter files when recording.

Thanks

You don't need to power the dummy battery from mains - there are people doing it with a chunky sized power bank

There is a Sony option that takes 4 FX100 batteries at once, but I believe it's also possible to use a USB-C power bank - I don't know the details but one person said they had the capacity of ten batteries in one. If you are getting almost enough from a single battery, I think ten would be plenty.

 

[ferrarofilms]

I got a two big usb powerbanks and npf big batts. I just sized the recording time to the batteries capacities and I am doing fine.Problem solved. Thanks