I was aware of this CD single but I don't think it had ever occurred to me to wonder why it was released. A 1991 release date (plus the inclusion of 'Still Crazy After All These Years') would suggest it came out to promote From the Top, but there's no mention of that collection on the sleeve notes (the only album mentioned is the European version of the UK Only Yesterday compilation).I think I may have picked it up on one of our trips to Germany. The disc face is a plain one that was common on some earlier CDs. I suspect that because this was a CD maxi single, a sort-of new thing, they wanted to cut expenses by using a generic disc face. Just a guess, but a fair number of early discs have rather plain disc faces.
The mixes used on this are:
Please Mr. Postman (standard album mix)
Desperado (standard album mix)
Still Crazy After All These Years (1990 From The Top mix)
Presumably it would have had to have been released at the end of 1991, as From the Top wasn't released until September I think, as otherwise 'Still Crazy After All These Years' would have had its first released appearance on this CD single, which would seem unlikely.
Nice alternate sleeve picture though.