Zavvi were having a sale so I ordered all of the DBZ season DVDs my understanding is that the picture is cropped as they forced it into widescreen, and the colour is also saturated to stupid levels, but I'm not paying thousands of pounds for the rare DVDs. These will do, and they have the Japanese audio at least. None of the DBZ stuff I downloaded had the Japanese audio. I've got the full series dubbed by Funimation, the episodes dubbed by Ocean, all the movies in both languages, but never found a full DBZ Japanese download. It probably exists but w/e, having it on DVD will be simpler. I got the DBGT full series from Zavvi as well, which has the Japanese & English versions. GT kinda sucks for the first 30% of the series though. I also downloaded the Ocean dub of DBGT back in 2015 - apparently it's not so easy to find nowadays.