[shuttertalk]

I just spotted this tidbit in the Canon EOS-1D Mark III press release -

in addition to the RAW and JPEG options found in previous EOS Digital SLRs, the EOS-1D Mark III Digital SLR now offers the "sRAW" recording format. "sRAW" has all the flexibility of standard RAW data recording, but at one quarter the resolution and approximately half the file size of conventional RAW images.

Interesting... I wonder - is it a completely new format, or just a smaller sized RAW file? I can see how the latter might be useful - like with JPGs you can choose from small, medium and large sizes, why not with RAW too?