Hey GMMan,
I understand completely where you're coming from. My issue is that I tried to inform GOTD about license infractions, and they ignore it. GPL violations and DMCA violations are two separate issues. I think the GPL violations are very obvious. The DMCA, however, is a beast to understand.
I, too, run linux :)
As far as the DVD ripping goes, you'll find that the software itself is an illegal circumvention device as defined by the DMCA. Yes, making a backup copy for fair use is legal and protected. Circumventing copyright protection or any tool used to do it (which is required to make your legal backup copy) is prohibited. Just look at what happened last month with Real's dvd ripper - they agreed to settle. You won't find any DVD ripping software here on GOTD that's from America as every time such software is released, it gets sued and loses its court battles to the DMCA. Until the DMCA is ruled unconstitutional (please oh please be soon), circumvention devices are technically illegal.
So keep the DVD backups you've already made as they are legal (I have nephews and nieces that would regularly scratch up the originals and used to give them backup copies to watch in the car to avoid damage to the originals), but also understand that the software used to remove/circumvent the encryption on your DVD is technically illegal in DMCA-abiding countries. If GOTD is based in the US, I'm very surprised it hasn't received a DMCA takedown notice for distribution of illegal circumvention devices. Just look what Apple did to Psystar in November of last year - they were able to claim that the Finder and a couple other applications in their OS were encrypted; therefore, the hackintoshes used to run those programs were "illegal circumvention devices" as they weren't authorized by Apple to decrypt the copyright protection. The argument worked and made Psystar pay up. It's some crazy-oppressive laws, but they're laws nonetheless.
You'll hear arguments all the time about "oh, the DMCA hasn't been tested by the supreme court" or "the courts still haven't decided if the DMCA trumps existing fair use laws..."
They're all pretty much in these flavors. No, the supereme court hasn't ruled on the DMCA yet, but that doesn't make it any less binding. Hopefully they will rule it unconstitutional soon. The fair use argument is also pretty easy to understand.
This example is oversimplified, but suppose congress passes a law that it's ok to eat chocolate ice cream (similarly, suppose congress passes a law stating that you can make back up copies of something you own - this is the basic concept of fair use). Now, suppose Congress passes a law that you cannot eat chocolate ice cream on Sundays (similarly, they pass a law stating that you cannot circumvent copyright protection/encryption). Do you then eat the chocolate ice cream on Sunday, stating the first law as your permission to do so? Fair use's silence regarding copyright protection (usually using encryption) is not a permissive silence, and the DMCA's wording prohibiting such actions has stood up in court most of the time over fair use's silence.
Hopefully I explained the DMCA in an easily understood way; if anyone has any questions about specifics in the DMCA, I'll be more than happy to answer them if I believe that they have not been fully answered already.