Home > Consumer Reviews > Alera Technologies 25 MB 16x Business Card CD-R Media (100-Pack).

I just bought a pack of these and I have to say, these are really a great idea and extremely convenient. I can fit all of my most used documents on the smaller "business-card" CD, and then I just stick it in my wallet. It easily fits in a credit-card-sized slot, and is only slightly thicker than your typical credit card. If I ever need one of my documents, I just whip out my wallet, pull out the little CD, and slap it in the drive.

My only caution would be to make sure these have enough capacity for your needs. These disks state they have about 50 megs of capacity, although when I check the actual size under my XP system, it's only about 40 megs. That's still more than enough for me to store everything I need, and I don't know if that's a typical finding or not. The main thing to remember is that the regular 3.5 inch mini-CD's store over 200 megs vs. the 40-50 megs here. So remember to take that into account.

The only downside to these is that they aren't read-writeable. That's still workable for me, since I can just create an extra directory with the updated information and just keep doing that until I run out of space and need to get another disk. Since I only need about 10 megs of space, that means I can update the information four times before I run out of space, since the file sizes don't really increase much in size.

Overall, a very useful and convenient little product.