It sounds that your wish list could be accomplished with an HTPC or a DAW.
These can be purchased but are best built by you to suit your needs and specifications.
This is my DAW (Digital Audio Workstation) that will handle, organize and make WAV files as well as edit and master CDs.
This is my
HTPC (home theater computer) that will handle audio and or video files plus record and burn them.
Those type of devices will do everything that you ask for here and more.