I uploaded a MPEG-1 video to youtube and it failed saying invalid format, But I've uploaded MPEG vids before and they worked.. It's obviously not MPEG-1 that I used before, and I was wondering if there's a way to tell if it's MPEG-1 or 2 or whatever because the file format only says .MPEG.

Thanks, sorry if it's not understandable, let me know and I'll try to explain again!

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I never wanted everything to end this way
but you can take the bluest sky and turn it grey.

In answer to your original question, I don't know.

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prisoner of hss is my lw wife

You could try to use a video converter like http://www.zamzar.com to transcode it into something that YouTube will accept.

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Intelligence is the ability to avoid doing work, yet getting the work done.

and if it doesn't work, then maybe try converting it to a different format?
abc 3gp/mpeg4 converter is good for that.

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[ℓiחŋie]&[вeиηy]
Someday when you're lonely / Sometime after all this bliss
Somewhere lost in emptiness / I hope you find this gift