Video:

It's very good given it's vintage. Color is dull like anime of it's era but it does not deter the enjoyment of watching it.

Audio:

Good. Loud and clear. It has Mandarin and Japanese dub ;-).

Subtitle:

On time and concise. English sub is translated correctly according to Mandarine dub. Chinese sub matches extractly the Mandarin dub. Sindbad is translated as Fatty in English ;-)

Comment:

Only watch the first 3 episode but given this series is ripped from a legit R3 set (explains the Mandarine dub). I bet the sub quality stays the same. When I listened to the OP and ED iof episode 1, I was happy that I've watched the show before as a kid. Of course given I did not remember the story at all, I am happy I can get re-acquainted with it ;-).