weird cd naming and mounting

[thufir]

I'm backing up data with DAR (Disc ARchiver) and burning to disc with 
xfburn. When LXDE mounts an inserted disc, it seems to confuse the 
inserted disc with a similarly named different disc.  (The discs have 
names like Data 2012-12-28~3 auto-generated by xfburn.)

I have three optical drives:  CD-R, CD-RW and DVD-RW.  I thought I was 
accidentally writing the same DAR slices to disc repeatedly, but now 
realize that's not the case.

Not sure how to figure this out.


thanks,

Thufir