converting ".BUP", ".IFO", ".VRO" to mpeg files ...

Hi,
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my camcorder, a SONY handycam DCR-DVD205, produced three files
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32768 May 28 18:55 VR_MANGR.BUP
32768 May 28 18:55 VR_MANGR.IFO
799604736 May 28 18:50 VR_MOVIE.VRO
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which I will have to split in smaller ones and then convert to the
mpeg format so that I can post them on youtube.com
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Which software can you use to do that?
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I guess I am not doing something right, but I can see different clips
on the screen, but when I finalized and transferred them they appeared
as a single big file. Is this fixable?
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Thanks
lbrtchx