Shin Tenchi Muyo! Box Questions

[Rando]

Does anyone know the differences between the Shin Tenchi Muyo! singles (which supposly have an English track) and the two boxsets?

Also, do the boxes have the Shin Tenchi Muyo! LD omakes that were left out of the region 1 release?

Thanks in Advance if anyone could help out.

[Buster Darkwings]

None of the recent Rondo Robe collections have any on-disc extras except for stuff like creditless OPs/EDs. But they're re-authored so the compression problems that plagued a lot of old Pioneer R2s is gone so far as I can tell from the discs I have (Pretty Sammy TV, Tenchi TV).

[Skywise]

Iirc they also took out the English dubs. I won't really say that the original R2 Tenchi encoding was bad - just very variable. Some discs/episodes were good, others weren't.