[LAU] mastering CD with additional data-tracks

Hi I'm thinking about adding data files to my next CD. The pressing company said it's the same price, if I can figure out how to deliver a disc "that works as supposed". However that's where the problem lies :-) I master with ardour, to get the transitions right + stuff in the ISRC codes. This gives me an export.wav and an export.toc, that I burn like this: cdrdao write export.toc Now the pressing company told me that I need to add the audio first leave the session open, and then add the data files. I looked at --multi option for cdrdao, but couldn't really figure out what to do. Basically I'm not even sure if it would be possible to add a "data-session" later and if that should be "closed", or... Have anyone any experience with this or something similar? Any advice or help appreciated! -- Atte http://atte.dk http://modlys.dk http://virb.com/atte