You can't transfer MC10 itself. However, you could experiment and try "Aloha Bob's PC Relocator" at
www.alohabob.com or
www.eisenworld.com, or:
Assuming all of your music is in a folder on your C drive:
1. Open MC10 on your existing computer and make a backup of your music database: FILE > LIBRARY > BACKUP LIBRARY. This will create a filename something like this:
MC Library Backup (Default - x-x-2004).zip in MC10's backup folder.
2. Copy the resulting backup file which is located in:
C:\Program Files\J River\Media Center\Data\Backups to a CDR/DVDR.
3. Copy all of your cover art from:
C:\Program Files\J River\Media Center\Data\Cover Art to the same CDR/DVDR.
4. Copy all of your music files, with their folder structure, from their location on your C drive to CDR/DVDR. Make sure to note this location (i.e. C:\MUSIC).
5. Install MC10 on your new PC by downloading the latest version from the Forum. Then open IE6 and go to:
https://rover.jriver.com/cgi-bin/restore.cgi and enter your registration code to reactivate the MC10 license.
6. From your CD/DVD copy the database backup file to:
C:\Program Files\J River\Media Center\Data\Backups on your new PC.
7. From your CD/DVD copy the cover art files back to:
C:\Program Files\J River\Media Center\Data\Cover Art on your new PC.
8. From your CD/DVD copy all your music back to the exact same location on your new PC.
9. Open MC10 and click on: FILE > LIBRARY > RESTORE LIBRARY and select the
MC Library Backup (Default - x-x-2004).zip file.
10. You should now be done.
I hope this helps.