Just to clarify, so basically the nett on infodisc is 1.20 inc. shrink wrapping and labour, for runs of 1000? What i mean by iso, is that you can burn an ISO9660 image on a cdrom as opposed to an audio cd for duplication. Because it's already a data disc, there's less chance of burning errors compared to audio discs, which might have dropouts. Also, if the audio is already mastered, i guess this premastering/mastering stage at the cd house is actually only to make it suitable for the glass master i.e. it's not an extra chargeable service, but has to be done anyway? I'm also wondering what's the optimum db level to pass the material for them, -0.3 dbFS?