I'm not sure if this will help, but I'll give it a try....
It sounds like you are trying to create two separate "libraries"....one for MP3, and the other for ALAC....? I also assume you are using iTunes since you are using ALAC? Correct me if I'm wrong....
If you can create one iTunes library with all the files, iTunes will let you view them by "file type". Then you can drag and drop those files into respective folders and create two libraries. You'll need some HD space for the transferring. If you are not using iTunes, most other music software will let you view and categorize the file by type as well.
Also note the the newest version of iTunes automatically allows all the files to be converted to 128AAC for all iPods, iPhones and iPads, so the need to keep a separate library for compressed files isn't needed, even though I wish Apple would allow the compression to be adjusted....maybe in the future....
I hope this helps....
It sounds like you are trying to create two separate "libraries"....one for MP3, and the other for ALAC....? I also assume you are using iTunes since you are using ALAC? Correct me if I'm wrong....
If you can create one iTunes library with all the files, iTunes will let you view them by "file type". Then you can drag and drop those files into respective folders and create two libraries. You'll need some HD space for the transferring. If you are not using iTunes, most other music software will let you view and categorize the file by type as well.
Also note the the newest version of iTunes automatically allows all the files to be converted to 128AAC for all iPods, iPhones and iPads, so the need to keep a separate library for compressed files isn't needed, even though I wish Apple would allow the compression to be adjusted....maybe in the future....
I hope this helps....