I’m going to assume that they are the same 1980’s version. The ‘aad’ just stands for “analog recorded-analog mixed-digitally mastered’ and can be found on numerous CD’s (or Sony would usually put under the CD logo “Digitally Mastered Analog Recording”) from the 80’s when companies were trying to tell people what was an all-digital recording (which would be represented as DDD or “Digitally Recorded-Digitally Mixed-Digitally Mastered”), as some customers wanted all-digital. But you might also see ‘add’ or (very rarely” ‘dad’. The last letter would always by D when going to CD, whereas for vinyls it would be A as it would be an analog master.I have 2 versions of Ticket To Ride on CD... The first is the (CDMID 137) that says aad AM+ on the disc and the second is Rebound Records version (314 520 238-2) which has "The Carpenters" on the CD. Both say 1986 on the cover... But what is the difference? Are they basically identical CDs (sound quality wise) from the same source?
The A&M+ was A&M branding from the 70’s to tell people that they were getting higher quality sound on their vinyl because the vinyl was pressed on virgin vinyl rather than recycled vinyl. A&M continued it on CD’s in the 80’s because CD’s offered higher quality audio.
The Rebound, according to Discogs, was a Polygram Special Markets label active from 1994-1999 in the US. So it was probably a US Reissue using the 80’s master.