http://dvdcompare.net/comparisons/film.php?fid=29019#2
Additions/corrections for the Swiss Blu-ray
Region: ALL (not B)
Subtitles: English HoH, German
Extras: (all in 1080p)
"Destination: Warriors Island" 2014 featurette with writer/director Edward Murphy and producer/cinematographer Frank Johnson (14:32) (English, optional English, German subtitles)
"Jim Wynorski on His Raw Force Experience" 2014 audio interview (5:04) (English, optional English, German subtitles)
Theatrical Trailer (1:59) (English audio only)
Notes: German title: "Jäger des tödlichen Jade". Between 26:40 and 26:45 there is a gap in the sound - it's completely mute. But only for the English audio, German is there (the DVD release is not affected). At the end of the movie you see the "Vinegar Syndrome" claim. So I guess this release is also a "2K restoration from the 35mm camera negative". 24-page booklet (non-removable) included with writing by Mike Blankenburg. Mistakenly labeled Region B only.
Additions/corrections for the Swiss DVD:
Region: R1-6 (R0) (not R2 only)
Audio: German Dolby Digital 5.1 (not 5.0)
Extras: All in English audio only, no optional subtitles
Notes: German title: "Die Jäger des Jade-Schatzes". No Vinegar Syndrome claim at the end (unlike the VS DVD). 24-page booklet (non-removable) included with writing by Mike Blankenburg. Mistakenly labeled R2 only.