Security Focus has published an article going deep into the big mistake with DRM. Here's an excerpt:

Scott Granneman One of my favorite magazines is The New Yorker. I've been reading it for years, and it never fails to impress me with its vast subject matter, brilliant writing, and the depth, wit, and attention it brings to important matters. When it was announced over a year ago that The Complete New Yorker: Eighty Years of the Nation's Greatest Magazine would be released on eight DVDs, I immediately put in my pre-order. After it arrived, I took out the first DVD and stuck it in my Linux box, expecting that I could start looking at the collected issues.

No dice. The issues were available as DjVu files. No problem; there are DjVu readers for Linux, and it's an open format. Yet none of them worked. It turned out that The New Yorker added DRM to their DjVu files, turning an open format into a closed, proprietary, encrypted format, and forcing consumers to install the special viewer software included on the first DVD. Of course, that software only works on Windows or Mac OS X, so Linux users are out of luck (and no, it doesn't work under WINE ... believe me, I tried).

Even worse, if you do install the software, and then perform a search using the somewhat klunky search tool built in to the proprietary DjVu reader, you'll soon find yourself in DVD-swapping hell as you jump from issue to issue. It is sheer painful tedium, and takes me back to 1985 when I was using the first Macs. Remember the floppy shuffle, as you inserted floppy 1, then floppy 2, then floppy 1, then floppy 2, then floppy 1, then floppy 2, ad infinitum? Now it's the DVD shuffle, 20 years later. That's progress for you! You could try copying the disks onto your hard drive, but the DVDs are encoded with Macrovision's copy protection scheme, so you can't legally do so.