Music CD - what file format?

[#1]

I want to "rip" some audio (music) from a .mp4 video track and re-record it on a CD to play on a "conventional" portable CD player..... ( the modern "boom box" type).... what file format should I use for the re-recording?
Thanks
( as a point of interest..... from .mp4 files to burning the CD I can get 17 tracks on the CD..) (I suspect that I could get more, if the .mp4 files were smaller to start with... )

[#2]

You'll need to burn in Audio-CD format. How to do it with Windows Media Player here http://windows.microsoft.com/en-us/windows-vista/burn-a-cd-or-dvd-in-windows-media-player

[#3]

Thanks for that..... sorry , but I think I may have confused myself, and you..... what format should I SAVE the ripped audio in ? ?  before burning to a CD for use in the CD player.?

[#4]

normally WMA, but will your BoomBox play MP3?, you will get more on the CD if it does

[#5]

The player is not mine.... so not sure what it will play... ( I know it plays "ordinary" current commercial CD music albums ) .......and I don`t know the make or model either ! ... Will have a go at both, and see if it works.... thanks for the advice...

[#6]

A standard CD has music recorded in .WAV format - but you only get about 8 tracks on a full CD.

[#7]

Well, Well,Well,..... all is well ..... as I have got a program already that will do the ripping and burning all in one.....
the prog is "A Tube Catcher"....
does more than what it says in the title.....
Thanks for the input guys.