How to merge m4a files

I have dozens of lectures from The Great Courses and have been ripping them in iTunes to use on my new iPod Classic 160gb. I finally took a break to listen and realized that it would be better to have merged all of the separate files for individual lectures. I had iTunes set to create m4a files. I do not want to go back and rip all of the CD's again and choose to merge the files in iTunes. I read on another post from a few years ago that QuickTime Pro could merge m4a files. But, I looked at the current version's description and there is no mention of merging or joining m4a files.
I don't mind purchasing software to do this but I don't want to purchase it if the software will not merge the files.
So...can QuickTime Pro merge m4a files?
Linda

Cooper100 wrote:
i use Allok Video Joiner to join all my files
just line them up and set the quality yourself
1) Video applications do not always work with audio alone as the OP is using.
2) The OP has already found a solution. It was a Mac-specific tool whereas the one mention states:
System Requirements of Allok Video Joiner
* Windows 98/2000/ME/XP/2003 operating system.
3) "Set the quality" suggest it is recoding the file which is not necessary and results in quality loss.

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*bump
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