How to convert mpeg files to bup or ifo or vob files?

You have to use a software program to convert these files. The one I use and love is the AVS4You video converter. I convert all my movies that I download to a DVD player format. You can also convert to other video formats as well such as MP3 player, etc. I've tried all of them and this is by far the best video converter I've found that does not take up a lot of memory such as the Roxio converter does.

DVD ripper which is full-featured,recommended for you,it can achieve a

variety of formats conversion for a variety of multimedia, DVD ripper Converte

various video formats ( including AVI, MPEG, WMV, DIVX, RM, MOV, 3GP, 3GP2, MP4,

MP4 AVC, FLV, SWF, MPG, ASF, etc.) and audio formats (MP3, WAV, WMA, MP2, AAC, AC3,

M4A (AAC), AMR, OGG, RA, AU, etc. )and etc.DVD Audio Ripper supports batch

conversion .here is a good Website u must be like:
Eztoo DVD Ripper for Mac :: Mac DVD Ripper Software Rip DVD to iPod/MPEG (http://www.eztoosoft.com/eztoo-dvd-ripper-for-mac.html)

step by step guidance
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Eztoo DVD Ripper for Mac :: Mac DVD Ripper Software Rip DVD to iPod/MPEG (http://www.eztoosoft.com/eztoo-dvd-ripper-for-mac.html#guide)

DVD Flick (http://www.dvdflick.net/)

Format Factory
Format Factory - Free media file format converter (http://www.formatoz.com/download.html)

Done.