art direction, design Chris DeMusis
artwork [cover art] Kiki Joyner
bass Pat Fontaine
design [xyz logo design] Pascale Diebolt
drums Joey Pafumi
guitar Bobby Pieper III
keyboards Jamie Lewis
keyboards Mark Chess
keyboards Phil Lupo
management [europe] Alain Carilli
management [europe] Clorys Concerts
management [usa] Barbara Davies
management [usa] Nxt Deztiny
mastered by Jeff Ciampa
mastered by Ken Feldman
mastered by Ken Kershner
mastered by Vic Steffens
tracks 9 to 11 producer George Tutko
tracks 1 to 6 producer Joe Mendyk
tracks 8, 12 producer John Goodenough
tracks 7 producer XYZ
recorded by George Tutko
recorded by Joe Mendyk
recorded by John Goodenough
recorded by Silvio Oar
recorded by XYZ
vocals Terry Ilous
tracks 1 to 6, 8 to 11 written-by Bobby Pieper III
written-by Pat Fontaine
written-by Terry Ilous
Manufactured By MCOM
Recorded At Studio Lazer
Recorded At Audio West
Recorded At Cherokee Studios
Recorded At Hitman Recording
Recorded At J.E. Sound Productions
Mastered At Horizon Studio (2)
Mastered At Big House
Track #11 : original version of the song which will be later re-recorded for their official eponymous album released in 1989 on Enigma.
Track #12 : original version of the song which will appeared as Letter To God in 2003 on the album Letter to God on MTM Music, the track # 3 is also available on the same album.

According to the CD liner notes, Rainy Days is the never released first album of XYZ, recorded in 1984 & 1985, after Pat & Terry moved from France to USA in order to launch the original American line-up of the band with Bobby Pieper on guitar and Joey Pafumi on drums. This early / mid 80's recording finally came out in 2005 on the band's own label.

6 page tri-fold booklet.
All songs © 1984, 1985, 1986.
Barcode: 7 86626 11262 3
Matrix / Runout: 58615AM-01 786626112623 051702-19
Mould SID Code: IFPI ZN1B
Other: MCOM (Stamped in mould)