No, they're not correct. Been meaning to come on here for ages to ask why they're wrong. Maybe there was a printing mistake on ONE ages ago or something, can't remember. The only ones with weird cat's are the old Circuit Breakers EP's as the sometimes get listed as VPR004 CBPT1, etc. ALL Viper releases should be VPRxxx You can see virtually every label we've ever done on our Flickr:
PS the new Metrik release has the wrong cat SPR032 instead of VPR032. http://farm2.static.flickr.com/1133/5163660020_8364207d38_z.jpg