win95b shows a third-non existing cd-rom

my win95b-harddiskdrive(internet) shows a third(beside cd and burner) cd-romdrive in ms-compatibility-mode. i had this mode already for the whole windows on a second hdd but not for cd-rom. it is told that this could slow-down the system. its very slow indead.its impossible maneuvering. i did not use this hdd for some months and it was well configurated and(compaired to winme) quite smooth.m i do not know what happened. how can i solve this problem. i doupt that i have a nero-image-program installed. for cd-rw. at that occasion more additional drives were listed which was wrong.