there ok on the exsp24 but.... obviously not a tr909 tho dude. novation drumstations a pretty good 909 & 808. sample cds dude, can get some fat drums on disc dude. check out uberschall techno/trance. thats got some good single hits. and as for virus there wicked. ive had mine probaly 3 years or more. longer then ive had logic runnig.