cd / dvd file indexes

im looking to write my own little program to help me archive my animu off my hard drive.
Ive got the archiving part down, but i need to output it somehow. The wo possible solutions are to burn it off straight away, or to output to a cd/dvd type file index (like Nero's .nri).

I'd prefer to store the information in something similar to the .nri , so i can burn it off anytime i want in the future.

Question is, how does one write a compatible .nri?

Do the people of 4chan know of any other formats which are viable?

Cuesheets are unusable, as they're made for music and i dont want to burn each file on a separate track.
Also, any iso image types are bad, obviously because im keeping a duplicate copy of the data.
What i mean by file index is a file that points to the various locations of the files i wish to burn, much like a .nri

Any help?

>>1
Not what you want, but have you actually considered using external 300 GB hard disks for backup? Consider the following:

● Price not much higher than equivalent quality DVD+Rs.
● Random access - read and write anytime, with no special software; can run software that needs to write to disk; no need to ready compilations.
● Keep (probably) ALL of your content in a single volume. Where's this series? This disk. Where's this another series? This disk, too. No need to waste time looking for or swapping DVDs. Plus DVD readers are retarded and take up aeons spinning down, then spinning up, then down, then up, then down, then up, then down, then up, and their drivers are about as retarded when they face read errors.
● Smaller storage requirements, and easier to carry around. "Hey Bub, what series will you bring to vacation?" "All"
● Easier to backup into another hard disk because you don't have to change discs.