I am looking at buying verbatims (on Amazon Prime) for my 25 discs i need for backups. I am trying to work on a budget and I'm having a little problem. On the 2.4x Verbatims on Amazon but the packs are 3, 10, 20, and 50. Even if i go the route to buy the 20 pack and 10 pack im paying almost as much as the 50 pack of disks. ($45, $50, only $5 difference). But, Amazon has 8x-10x verbatims in a 30 pack for $30. Could i use these Verbatims and burn them at 2.4x and still make the good backups?