I think it's a shame that although the theatrical showings of the prequel trilogy were described, meaning the description track was already bought and paid for, it was not included on any DVD release. I also think it's unfortunate that the videos of the original trilogy with description are not available outside the US.
I'm all in favour of making the original trilogy more accessible to the blind, and hope that there is someone in the US who can get hold of one of these tapes and record the audio.
Allan, out of interest, are you using a screen reader to access this forum? How well does it perform?