Hi Dan, welcome on board.
There are a few things we can try…
1.) check the disks are mapped correctly
df -h
Filesystem Size Used Avail Use% Mounted on
rootfs 1.7G 700M 968M 42% /
/dev/root 6.4M 6.2M 184K 98% /initrd
/dev/sda1 1.7G 700M 968M 42% /
/dev/sda1 1.7G 700M 968M 42% /share/flash/data
/dev/sdb1 230G 27G 200G 12% /share/hdd/data
/dev/sdb2 114M 4.1M 109M 4% /share/hdd/conf
/dev/sdb2 114M 4.1M 109M 4% /share/flash/conf
I have my external disk as /share/hdd/data.
2) Check for files
ls -l /share/hdd/data/public
drwxrwxrwx 8 root root 4096 Feb 24 16:15 mp3
Do you see your mp3 directory ?
Are the file permissions set correctly ?
3) Check your mt-daapd.conf for the path of the share
If you need to edit to the conf file and are not confident using vi try installing nano with
ipkg install nano/Steve