[andrewas]

Yup, any CD-R will be able to burn both data and music. Its still worth paying extra though, the cheaper models can be slower and less reliable.

Do not trust music only media to hold data though, they are lower specification and while it will almost certainly work, why risk it for the sake of loose change?

One alternative you might like to go for is a USB drive. Stores a fair amount, can be used on any computer with a USB slot. Much more convinient that carrying a CD around.