HEAVY-DUTY
    (1980)    EMI  SLEM-1033

• Includes I Like To Rock (Me Gusta El Rock) and Roller
• Nearly identical to U.K. release with the same title and the German release "Metalmania" (cover art is the same) with slight tracklist changes.
• Song titles are in Spanish & English

CASTLE DONNINGTON - MONSTERS OF ROCK
    (1980)     Polydor  LPR-16450

• Includes I Like To Rock
• Recorded live at Castle Donnington (U.K.), August 16th 1980
• Jacket has “demonic” sunset drawing on front, assorted concert pictures on back

EMI ES ROCK  VOL. 2
    (1984)    EMI  LEC-073

• Includes This Could Be The Right One (Eso Podria Ser Lo Correcto)
• Song titles are in Spanish & English (check out the spelling!!)

LOS HEROES DEL HEAVY METAL
    (1984)    EMI  LEMT-1192

• Includes 21st Century Schizoid Man (Hombre Esquizofrenico Del Siglo 21)
• Song titles are in Spanish & English