Over the years I have purchased several packs of these CD-R's which I have used for backing up data and creating music CD's. They are CD-R discs which means they can only be written to once and then cannot be changed or added to.
Processing/Quality: I have never experienced poor quality music or scratches of any of the new CD's I have bought, which retail at around £5 a pack which works out to be 20p per CD-R. The handy thing is with these discs is that they come in a handy spindle which can be used afterwards to store the CD's and as I don't make hundreds of CD's the 25 pack is fine.
The dissapointing thing, which is the case with all CD-R's, CD-RW's etc is that even though you have 800MB of space on the CD; when creating a music CD you can only record for 90minutes. This limits the capacity to around 20 songs on the other hand, backing up data on them means you can hold 800MB of; old work, music, films which could be clogging up your hard drive.
The new CD's now have a 52x writing speed which is one of the fastest, if not the fastest, on the market so your CD's will be finished much quicker.
With these I also recommend buying pens which are able to write on the CD itself so you can label them up, as loads of blank CD's make it hard to find the one you want. You can get a pack of these pens cheaply at a supermarket or stationary store.
Thanks For Reading.