Ken Thompson and Sean Dorward worked hard on PAC to get it ready for release. Our plan was to fill up the rest of the Plan 9 release CD with several hundred meg of PAC audio. I gathered together music from a number of famous musicians (I won't name drop here but you'd recognize them all), much of it recorded just for us. We were going to release the source code for the decoder and, in a compromise for the business people trying to sell to the broadcasting industry (they eventually succeeded; digital FM broadcasting is derived from PAC), only 386 binaries for the encoder, at least for the initial release. At the time the encoder only ran about 1/4 real time on a PC.