U.K.                      NOTHING TO LOOSE                POLYDOR PRO 082 (US 1978)
U.N.                      GET IT ON / I'M IN THE GROOVE   PRELUDE PRL D 506 (US 1979)
U.N.                      HOT LOVER / DISCO POWER         PRELUDE PRL D 505 (US 1979)
U.N.                      U.N.                            PRELUDE PRL 12168 (US 1979)
UBIQUITY                  MIDNIGHT AFTER DARK / (short)   ELEKTRA AS-11387 (US 1978)
UBIQUITY                  STARBOOTY / MIDNIGHT AFTER DARK ELEKTRA K 12305 (UK 1978)
UDELL                     WON'T YOU TRY / (instrumental)  TOM 'N' JERRY TG 6003 (US 1977)
ULLANDA                   AROUND AND AROUND / (same)      OCEAN OR 7505 (US 1979)
ULLANDA                   STARS                           OCEAN OR 7503 (US 1979)
ULLANDA                   WANT ADS / (short)              OCEAN OR 7500 (US 1979)
ULLANDA                   WANT ADS                        OCEAN AR 8900 (US 1979)
ULTIMATE                  MEDLEY / (blank)                CASABLANCA NBD 20151 (US 1979)
ULTIMATE RADIO BOOTLEG VO KCBQ-SAN DIEGO 1958-1978 / (2 t MERCURY MK-85 (US 1979)
ULTIMATE RADIO BOOTLEG VO 18TH APRIL 1964 / (LP)          MERCURY MK-121 (US 1979)
ULTRAFUNK                 GOTHAM CITY BOOGIE              T.K. DISCO 13 (US 1976)
ULTRAFUNK                 GOTHAM CITY BOOGIE / SUNRISE (F CONTEMPO CX 14 (UK 1976)
UNCLE LOUIE               FULL-TILT BOOGIE / SKY HIGH     T.K. DISCO 143 (US 1979)
UNDISPUTED TRUTH          LET'S GO DOWN TO THE DISCO / YO WHITFIELD PRO 651 (US 1976)
UNDISPUTED TRUTH          SHOW TIME / MISUNDERSTOOD       WHITFIELD WHID 8783 (US 1979)
UNDISPUTED TRUTH          YOU + ME = LOVE / (same)        WHITFIELD PRO 638 (US 1976)
UNDISPUTED TRUTH          YOU + ME = LOVE (INSTRUMENTAL)  WHITFIELD K 16804 (UK 1976)
UNIVERSAL LOVE            MOON RIDE                       T.K. DISCO 60 (US 1977)
UNIVERSAL ROBOT BAND      DANCE AND SHAKE YOUR TAMBOURINE RED GREG RG-209,10 (US 1976)
UNIVERSAL ROBOT BAND      DISCO CHRISTMAS                 RED GREG RG-216 (US 1977)
UNIVERSAL ROBOT BAND      FREAK WITH ME                   RED GREG RG-217 (US 1978)
UNIVERSAL TWO             DANCING HEART                   GOLDEN FLAMINGO 3030 (US 1981)
UNIVERSE CITY             CAN YOU GET DOWN                MIDLAND DJL1-1667 (US 1974)
UNLIMITED TOUCH           I HEAR MUSIC IN THE STREETS / I PRELUDE PRL D 605 (US 1980)
UNYQUE                    KEEP ON MAKING ME HIGH / PARTY  DJM MK-112 (US 1979)
UNYQUE                    KEEP ON MAKING ME HIGH          DJM 334 (CANADA 1979)
UPP                       NEVER GONNA TURN MY BACK ON YOU EPIC AS 228 (US 1976)
USA-EUROPEAN CONNECTION   COME INTO MY HEART - GOOD LOVIN T.K. DISCO 84 (US 1978)
USA-EUROPEAN CONNECTION   I'D LIKE TO GET CLOSER / THERE' T.K. DISCO 425 (US 1979)