[Cri Cri]

Wow, this is a very old post 🙂

The limitation of that software was that it processes only 50% of the file.
So, to overcome this, one can simply create a file by appending the file to itself, creating a movie with twice the same data. So the program will fix the first half which is in fact our main movie.

The copy command can create a file by concatenating other files:
copy input_file+input_file2+…+input_fileN output_file
So, by using:

copy FILE000.MOV+FILE000.MOV DOUBLEFILE.MOV

and then running the program to fix it, the output would be your main movie repaired (if not too corrupted).

[Cri Cri]

Thanks for the reply Sean.

Lexar pro 600x is still available in my country but the price is exactly 3 times higher than the kingston, which is not an option for me since i am not a professional. Still I am not convincend that simply buying a faster card would fix the problem since several people reported that the cards that worked a lot of time perfectly on 5DMK2 had this issue on 7D.

I will try and borrow for a time a pro card and see if there are issues.

So far, i have formatted the cards (i have two of them) with 64K cluster size – the largest, and shooting around 15 clips (filling a 16GB card twice ~96 minutes of footage) triggered the error only once! I formatted the card fully, not through quick format.

I will test further and let you know.

[Cri Cri]

As data recovery tools you can try:
– GetDataBack for FAT (https://www.runtime.org/data-recovery-software.htm)
– Partition Recovery or UnEraser from DiskInternals.com

If you do recover a MOV file, you can then use VideoRepair utility (https://grauonline.de/cmsimple2_6/en/?Solutions:HD_Video_Repair_Utility) which as a demo only recover half of the movie, but you can always do “copy FILE000.mov+FILE000.mov DOUBLE.MOV” 🙂
Ah, the video repair utility requires a previous MOV file recorded with ur camera to use it a sa template or something.

[Cri Cri]

Hello,

I have the same issues with my 7D, using Kingston Ultimate CompactFlash 16GB 266X (approx 50MB/s).
When i bought the camera it came with firmware 1.2.5 and had the issues.
After upgrading to firmware 2.0.0, the issues remain.

I have identified actually 2 distinct problems:
1. Sometimes after stopping the movie recoding, the camera will take a few seconds to stop, the red activity led will blink but in the end the message Error 02: Card can not be accessed. Reinsert/change or format card with camera. is displayed and the clip lost. This is RANOM. For example, i shot a 50 seconds clip, stopped, recorded another 1 minute clip: error. Recorded another 50second, ok, another 30 seconds: error. Then recorded another 4 clips, the last one of 3 minutes and everything was ok. I let sometimes the camera record the maximum of 12 minutes and went ok. Before starting shooting, i formated the card from the camera. It seems to me that if i record a clip and delete it, next recording almost always resulted in an error. If i would take a still picture and then record, would work ok, but this is not certain.

2. Only once it happened on firmware 1.2.5 that after stopped the recording the camera froze completely so i had to remove the batteries. It seems that the FAT filesystem on the card was corrupted and had to run chkdsk. The result was that it recovered for me the first 250MB of that clip. Later on i found out that i should have used data recovery tools like GetDataBack or Parition recovery from DiskInternals to recover even more data. The idea is that the clip was there! (initially a 0 bytes file but after chkdsk a recovery file appeared).

So the main difference between 1. and 2. is that in 1. i DO NOT HAVE ANY FILES. It is hard to recover them afterwards especially if you overwrite the empty space by recording other movies.

Should this be because of buffering? I noted that the camera formats the card with 32KB cluster size. I want to try with smaller cluster sizes and see if there is a difference.

I browsed the internet for some answers and most of the ppl say “buy the pro cards, it’s the card’s fault not the camera”. I am not by far a pro, and do not afford to pay 3 times the price on a pro card.

Sorry for my english and long post.