Ok here's a semi stupid question

If I want to save stuff on cd which ones do I buy? CD-R or CD-RW?

Hello,
If you want to save something to a CD, you can use either CD-R or CD-RW.
The difference is:
CD-R: You can write to it one time and whatever you write is permanent (cannot be changed / updated). But, if you use a program that supports "Multi-Session" burning, then you can add to the disk, you just cannot change what is already there. But, most of the burning that you do from OS X is single-session, so you write something to the disk, and it is done. So, basically, put whatever you want on it the first time, and as much as will fit, then burn.
CD-RW: Basically the same thing, with one major exception. You can completely erase the disk, or erase files that are on the disk and replace them with updated versions or completely different contents. But, you can only do this a limited number of times (I think the average max. is around 100 times, but it could vary by the disk).
I hope this helps.
Let us know if you have other questions.
P.S., if you'd like, go ahead and click the "Helpful" or "Solved" buttons on any of the posts / replies above if you feel they were helpful or adequately answered your question.

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