I gave up on CD's years ago after read failures. Whether it was drive problems, burn problems, media decay problems, whatever. To me cd's and DVDs just are not worth the effort for the relatively small size and tedious process of burning, along with the difficulty of finding files among stacks of disks. On fashon shoots I might fill 8 or 9 4gb CF cards per day. So each one fits on a disc, then you burn 2 copies, etc. and wind up with 20 disks of just the RAW for that day.
Fair enough! Whatever you find most convenient. But the subject is Blu-ray, and one can now record 50GB of data on one disc. I can store 1TB of data on just 20 Blu-ray discs which are much lighter and more compact than a terrabyte hard drive. I don't do it because these discs are still rather expensive. But I like the idea and hope prices will come down.