Hi Zouina

File size varies depending on the file format and song length. mp3 files are usually 3000 to 6000 kB (kilobytes).

A typical CD-R can hold 700 MB (megabytes), which is the same as 700,000 kB.
So, you can easily fit over 100 mp3s on one CD-R.

A data CD can contain any file type...mp3s, video files, pictures, etc. Some CD players will play mp3 files. Audio CDs contain a very specific file type that can be played on all CD players. Audio CDs can usually only hold 10-20 songs, depending on how long they are.

Once you copy your CD to your new computer, add that folder to your shared folders (How to share folders) and then you will once again be able to see all of your songs in Limewire's library.

Hope this helps