The Beatles - Unsurpassed Masters Vol. 4 ~ 1968 (1990)

Tracks 6-17 comprise "The Peter Sellers Tape," which Ringo gave to his friend Sellers before The White Album was released. Some of these mono mixes are different from the released versions, in particular, 10 and 11, which have extra sections that were later edited out. These recordings were later issued in improved quality, but this is the first time they were all gathered on one release.

Track 5 is mistitled "I Hate To See The Evening Sun Go Down". Paul is actually riffing on "St. Louis Blues".

This was the first issue of the previously unheard mix of "What's The New Mary Jane" (Paul and Ringo do not play on this track).

All tracks mono except 1, 4, 5 and 18.

As with all other Yellow Dog issues, the mastering speed on all the tracks is wrong.

Additional track info (RM = Remix Mono, RS = Remix Stereo, per official EMI engineering terminology):
Track 1: Lady Madonna (take 5)
Track 2: Across The Universe (Take 8 "Hums Wild" mix)
Track 3: Brian Epstein Blues (outtake)
Track 4: Hey Jude (incl. Las Vegas Jude) (take 7)
Track 6: Back In The USSR (take 6, RM 1)
Track 7: Rocky Raccoon (take 10, RM 1)
Track 8: Wild Honey Pie (take 1, RM 6)
Track 9: Mother Nature's Son (take 26, RM 8)
Track 10: Sexy Sadie (take 117, RM 5)
Track 11: Don't Pass Me By (take 7, Unknown RM)
Track 12: Yer Blues (edit of takes 16, 17, RM 3)
Track 13: Good Night (take 34, RM 6)
Track 14: Everybody's Got Something To Hide Except Me And My Monkey (take 12, RM 1)
Track 15: Ob-La-Di, Ob-La-Da (take 23, RM 21)
Track 16: Blackbird (take 32, RM 6)
Track 17: Not Guilty (take 102, RM 1)
Track 18: What's The New Mary Jane (Take 4, RS 3)