I e-mailed Avanz a while ago and got this information about their DVD releases:
SP/DR-00001
APPASSIONATA
English
SP/DR-00002
IL PRESIDENTE DEL BORGOROSSO FOOTBALL CLUB
Italian
SP/DR-00003
...4..2..3..2..1... MORTE
English
4:3, hardcoded Japanese subs
SP/DR-00004
STORIA DI UNA MONACA DI CLUSURA
Italian
SP/DR-00005
ROY COLT & WINCHESTER JACK
Italian
SP/DR-00006
SVEZIA INFERNO E PARADISO
English
SP/DR-00007
THE SCARLET LADY
English
SP/DR-00008
REBUS
English
4:3, hardcoded Japanese subs
SP/DR-00009
REQUIEM PER UN AGENTE SEGRETO
English
cinemascope 16:9, hardcoded Japanese subs
SP/DR-00010
MARK IL POLIZIOTTO
Italian
SP/DR-00011
LOVE SICILIAN STYLE
Italian
SP/DR-00012
INGHILTERRA NUDA
Italian
SP/DR-00013
THE STORY OF LADY HAMILTON
English
SP/DR-00014
JERRY LAND
English
4:3, hardcoded Japanese subs
SP/DR-00015
LA NOTTATA
Italian
SP/DR-00016
DESERT COMMANDO
English
4:3, optional Japanese subs
SP/DR-00017
TOO MUCH GOLD FOR ONE GRINGO
Italian
SP/DR-00018
OUR MAN IN JAMAICA
English
4:3, optional Japanese subs
SP/DR-00019
IL SOLE NELLA PELLE
Italian
SP/DR-00020
100,000 DOLLARI PER LASSITER
English
4:3, optional Japanese subs