Combining songs to play without a break.

I wish to combine songs that have the same rhythm in such a way that the songs change but the rhythm remains continuous and does not change. e.g. while doing aerobics.
Is there any software I could use or a procedure that would allow me to create such a CD?
Thanks.
avipro

 

Try this link to a program if you wannat try waht your looking to attempt:

http://www.freewarefiles.com/programs.php?ProgramID=11499&categoryid=6&subcategoryid=73

 

Thanks.
I will D/l and try it.
avipro