Use "read" command, and read a sequence of bytes as opposed to "getting" the whole line from the file. Reason is some characters are used to represent the uninitialized state of a variable. Displaying these characters will cause an error.
Its interesting that you are trying to read a mp3 file. How are you going about decompressing it. If i remember right, you need to know Huff encoding which involves creating a balanced structured tree, not something learn in your average high school class
Plus if i remembered right you need a bit of knowledge on second year university calculus and the Fourier series.
Seems to be a tight project good luck.
