Use quality media. CDRs must be DAO. No gaps, cliks, pops or sounds that shouldn't be there. I stand behind what I send. If there is a problem with something. I will repace it. I expect the same. If there is an error on anything I get from you. I expect a new copy of that show without errors or a different show. I have listened to almost every show I have very close to check for errors. If there are any problems on something I send then its probably a bad copy and I will replace it. All shows listed as DAT are also on CDR. I use Sony DDS tapes and Fuji cdrs. If you want a different brand just let me know.