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Compact Flash import problem
This is my conundrum wrapped in a dilemma. I have been shooting 1 hour lectures on both tape and Compact Flash with my Sony HVR-z7u. The CF is a Transcend 32gb 400x, which holds more than 2 hours of HDV footage.
After transfer to my hard drive, the AVI video files on the card play fine in Windows Media Player. But when trying to import them into Premiere Pro CS6, maybe one or two of the files imports properly, the others are flagged with the “damaged or unsupported file” error message.
After doing some research, I downloaded something called Enosoft AVI repair tool and used it to repair the “damaged” files. Amazingly enough, they imported with no problem and look just like I’d expect the original AVI file to look. So while it’s a workaround that enables me to avoid a full tape digitization, I am wondering whether someone might know why the files are supposedly “damaged” to begin with. I’ve used this unit to record on CF many times before, usually with a 16GB 133x Transcend CF.
Any clues will be greatly appreciated, and I will also post this on the HVR-z7u area. Thanks very much.
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5 Replies
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Try this:
-Import a card
-Find a file that is corrupt within Premiere
-Run an MD5 or CRC checksum on that file on your hard drive and on your memory card (google an MD5 or CRC checksum utility, they”re all over the place)If the checksums mismatch then you’re having errors in the file transfer. You may have a bad card reader, USB cable, and so on. I would suggest grabbing Shotput Pro since it does data transfer with checksum validation.
If the checksums match, I would check for firmware updates for the camera or run some kind of utility to check the integrity of your CF card.
Angelo Lorenzo
Fallen Empire – Digital Production Services
RED transcoding, on-set DIT, and RED Epic rental services. -
Thank you very much – your suggestion gave me the idea to get the .AVI files onto my hard drive in a different way. So instead of using the computer’s built-in CF reader, I transferred from the Sony MRC-1 CF unit via Firewire. Put the files on the hard drive, tried to import into Premiere Pro, but the same thing happened – 8 of the 9 files were “damaged or unsupported.” And since I also have tried three different CF cards, I am wondering whether it could be that I’m using the 400x rather than the 133x that I usually use.
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One more interesting wrinkle – I have PP CS5 on my old computer and ran a test. The files listed as “damaged” in CS6 imported perfectly. So it could be a PP issue.
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I don’t think I’d jump to that conclusion just yet. If you transferred the files an additional time from the original media to your old computer, you’ve introduced another variable in your troubleshooting.
Again, I stress using an MD5 or CRC checksum program to check the “damaged” file against the same file on the card. If there is a mismatch, the file was damaged while being copied.
Angelo Lorenzo
Fallen Empire – Digital Production Services
RED transcoding, on-set DIT, and RED Epic rental services. -
Apparently CS6 has a known issue with these files.
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