Not an answer per-se, a suggestion really...
Depending on the number of customers, amount & size of data involved, you might consider providing your data on a thumb drive. USB 2 thumb drives are quite inexpensive (especially with the advent of USB 3), and are more convenient as some customers may no longer have DVD drives. And, if a good impression maters, your name can be printed on the device. Well, you get the idea...
HTH