I just went through my entire collection and it turns out that quite a few libraries load just fine.

IF IT SAYS "ILLEGAL FILENAME" WHEN YOU TRY TO LOAD A LIBRARY MAKE SURE THE FILE'S EXTENSION IS ALL IN UPPERCASE.
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Spoiler: DCP Productions:

Complete Orchestra
Mo Skool 2

Spoiler: Digital Sound Factory:

Motif Performer
Motif Symphonic Strings
Vocal XSpressions

Spoiler: EasySounds:

Chill Xperience
Dance Xpanded
Drum Performer (!disable the arpeggiator!)
FM Xpanded I
Hypnotic Stepz
Mystic Spheres
Organ Session (says "some keybanks were not loaded" but it seems to work fine?)
Magical Pads
Phat Analog
Phat Analog II
Stage & Studio (loads but I can't find the performances?)
Synth Xtreme
Vocoder Dreamz

Spoiler: Gospel Musicians:

Neo Soul Rhodes (pack is genuinely terrible though)
Jamal's Flash doesn't work even after removing the stolen Yamaha voices via John Melas' tools/AWave

Spoiler: K-Sounds:

Signature Piano
Piano 2 (Kawai EX)

Spoiler: Synthogy:

American Grand - Steinway D (YES REALLY IT WORKS)

Spoiler: Yamaha:

Sonidos de Mexico (change the file extension from lowercase to uppercase. Some sounds might have a click noise)
Wojtek Olszak 10th Anniversary (says "some keybanks were not loaded" but it seems to work fine?)
Peter Jung's CS80
Peter Jung's Symphonic Orchestra
EDM Expansion

 

Last edited: May 18, 2026

Unfortunately I can't get Sweetwater's pack to work whatsoever even if I manually copy and paste the non-Yamaha waveforms and patches into a new file with John Melas' Motif Waveform Editor. If anyone can get it to work (without the built-in Chick's Mark V) let me know ASAP.

 

Good stuff. Thanks. Where did you get the last group from? the 10th Anniversary, 2 from Jung and EDM Expansion?

 

The last 3 should be from the 40th Anniversary Pack but I'm sure some were distributed randomly too (but for the MOXF iirc)
the Wojtek one I can't remember, it must've been one of those "send an email to a yamaha address and they'll email you the directory link" deals
p.s. added sonidos de mexico to the list