Following on from the original question - and assuming it's legal - I want to rip a couple of my DVDs to watch on my PDA which is running Windows Mobile with Windows Media Player and RealPlayer: how do I convert the output to .wmv or any other file type compatible with those programs (.mp4 will not play).
The legality of this is questionable, as is the legality of making backup copies of DVDs...
On one hand, copyright law states that we have the right to create backups of copyrighted material for personal use. Yay that. However, the Digital Millennium Copyright Act states that it is illegal to break the encryption/copy protection on digital media. That means that in order to make that legal backup for personal use, you have to do something that is also by definition illegal.
Now that I have a two-year old (who loves loading my DVDs into the player, and doesn't seem to be concerned about how sticky his hands are while he does this), I plan on backing up a chunk of my child-friendly DVD collection and letting him use those. Am I breaking the law? I suppose I am. However, I don't expect the MPA to break down my door since I have no intentions of giving those copies to friends or posting them on the Internet.
MacTheRipper is the tool that violates the DMCA by breaking the CSS encryption. Popcorn and DVD2OneX are tools that compress dual-layer DVD9 video onto single-layer DVD5 capable media. These tools are legal because they will not work with CSS encrypted files.
I hope I'm not violating the user agreement of this forum by discussing this, having also stated the (lack of) legality of using the tool.
Back to the question above -- if you have a legal DVD (that is, one that's not encrypted, however you get your DVD de-encrypted is up to you), then a tool such as Popcorn will create a DivX file that can be played with third-party software on a Windows Mobile device (the name of the tool that I've used escapes me at the moment, but suffice it to say that Windows Media Player does not handle DivX, but you should have no trouble googling "DivX Windows Mobile" and finding a player).
If you want to create a WMV file on the Mac, then you'll need to fork out the $50 for flip4mac studio, and I'm not sure if it will handle the VOB files inside of a VIDEO_TS folder.
For more information, feel free to do a search on videohelp.com for something like "DVD to WMV" -- you'll find a load of Windows tools, but you may also find something for the Mac.