Yo Jacko, is it safe to use this encoder with S3Pro, and is it legal?
Yes it is a) safe, and b) legal.
Re. a), then no bits have yet been reported harmed by the cwenc tool
Re. b), see the cwenc FAQ at
http://cwenc.sourceforge.net/faq.html regarding MP3 license issues.
Cakewalk definitely has no problems with cwenc. A guy actually told me recently than Cakewalk support had e-mailed him a copy of cwenc, when he could not get his licensed copy of the original Cakewalk encoder to work.
Mikkel Elmholdt
(cwenc author)