I've seen small miracles with this little converter tool : Pazera FLV to AVI version 1.2
Don't use later versions, they only accept FLV files. This version accepts mostly everything that is decodable by your computer/installed codecs.

It's not an Mpeg repair tool per se, but it's sometimes forgiving when reading input data. Just drag and drop the file in the main section. Set your parameters and click on convert.

The video bitrate is set to 1000kbit/s by default, so don't forget to change it.

If you have access to a Mac then ffmpegX has many cool features including repair.

Beegle wrote:

I've seen small miracles with this little converter tool : Pazera FLV to AVI version 1.2 Don't use later versions, they only acc […]
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I've seen small miracles with this little converter tool : Pazera FLV to AVI version 1.2
Don't use later versions, they only accept FLV files. This version accepts mostly everything that is decodable by your computer/installed codecs.

It's not an Mpeg repair tool per se, but it's sometimes forgiving when reading input data. Just drag and drop the file in the main section. Set your parameters and click on convert.

The video bitrate is set to 1000kbit/s by default, so don't forget to change it.

No luck. It won't open the video file. (Strangely though, it detects it as being only about 600 MB big when the actual file size is over 4 1/2 GB.)

brassicGamer wrote:

If you have access to a Mac then ffmpegX has many cool features including repair.

I'm not on a Mac but I do have access to ffmpeg, but it won't even open the file. :/

Sorry that happened to you. I don't have a solution, but can relate. Once I did a super long video of me setting up a machine, just to find out I didn't capture the voice over 😵

Gemini000 wrote:

No luck. It won't open the video file.

Hm. Maybe if you upload the file somewhere maybe we could give a shot at it, individually?

Gemini000 wrote:

...it detects it as being only about 600 MB big

Strange indeed. Maybe there's an error at that exact point. Were you using capture software, or a capture card?

edit :
I also just thought... you could try uploading it as-is to your youtube channel, see if their server recognizes it. If it does, then maybe you could redownload it in HD.

Sorry you've been having a rotten week, I've had plenty this year myself and know how much a small bit of success can make all the difference.
What you need to do is fix the files header information, then those tools can do their magic on the frames inside.

I would make a copy of the file, then I would open the file in a Hex editor and take a look inside to make sure it's got data and not just an empty file of zeroes.
Then look up the file's header format and fix it manually, and finally parse the file with a tool that can either repair the file or encode it to another format.

AviDemux might help

Have you tried FormatFactory yet? Since it works with almost every video format available ("from" and "to") it might be worth a try.