I used to do;
1-01 Track1.ogg
1-02 Track2.ogg
...
2-01 Track1.ogg
2-02 Track2.ogg
etc and put 1-01, 1-02... in the track number Tag (ogg) too.
But I (think I) remember reading that the database works better if track number is truly numerical (but maybe I dreamed it) so I now do 'DNN' where 'D' is the disk number and NN is the track number 101, 102..., 201, 202, etc - I don't have any thing that is on more than 8 disks (best of the 80s) and no disk that has more than 99 tracks to that's fine.