Hi guys I was wondering Is there any way to find out the audio CD (.cda) which was made from the wav or Mp3 files. I checked the file size of one CD compares to other CD then I saw that this was made from the wav (so if the size is less then we can consider that it will be mp3. If it size is same it will be wav), but here I cannot figure out the best way to find out. Compact disc audio is confusing me. Can anyone tell me how can check the size of the disc? One day I downloaded the album from. I changed the computer several times then apparently I lost my data. But you still I have had the audio file then I burned it in my computer. Then I knew that song was huge quality. At that time I was not knew that the original quality.