The R2 DVD has:

* Japanese 5.1 and 2.0 DD
* English 5.1 and 2.0 DD (essentially the dub mix with the original title card music)
* English captions (dubtitles)
* Japanese subtitles for the English dub (!)

Credits are in Japanese. (Actually the ending of the OGM is DVD-sourced, as the HK lacked it!)

Along with the added CG the Mewtwo origin was tacked onto the beginning of the movie. (The full version of this is ALSO available on the "Mewtwo Returns" Region 1 DVD, in English only.)

Now that I have the laserdisc I should really redo it, but I'm kind-of holding out until I can find someone to do a new translation (...other people get very mad when I use their subs!)

AFAICT, it's 2 sides CLV for the movie, with the Pikachu's Summer Vacation short along with it, and some interview.  Reasonable quality, although my initial rip was a bit too colorful when compared against the more subdued tones of the R2.

Some news on my front.

I'm not familiar with the deal of capping on Windows or with heavy cleanup filters, but I have a raw unfiltered lossless rip of the second half of the movie that's in reasonably good shape, albeit very, very noisy.  I'm going to still see what I can do.  For some reason I lose a lot more frames capping the front of the disc.

Also, lol msmooth.

^Care to share this? It's been awhile since I watched the original and my sub copy seems to have disappeared...

A lot of people have been badgering me for this, so I'm going to try to read a cap I have here and upload...

I'll try to have a torrent of my raw cap up somewhere this evening.  Probably Nyaa.