I discovered you can rip SACD. Well, sorta. You need a universal player with HDMI that can convert DSD to PCM, and a pre/receiver that'll send that stream to a SPDIF out. This limits you to 96/24 stereo because that's as much bandwidth as SPDIF can handle.

Normally I have my universal player (Pioneer Elite) send raw DSD to my receiver because my receiver decodes DSD natively. I set it to 88.2kHz/24-bit PCM and connected an optical out from my receiver to a USB soundcard and then into my laptop and recorded the wave stream. Afterwards I split up the tracks and converted them to FLAC.

There's a free little program for PCs called DVDAudiofile that converts the files from there into MLP and then into a DVD-Audio disc image.

The resulting DVD-A sounded every bit as good as the SACD. I made a 4.26GB Police compilation, BTW (much better than the commercially available Police Greatest Hits SACD, albeit in stereo only).

In theory this process should also work with DVD-A discs too if they're not watermarked. Problem is you don't know if they are until you actually try to play back the burned DVD.