cdparanoiasrc and scsi errors

[Jeffrey Barish]

I have a pipeline that starts with cdparanoiasrc.  For most CDs, the pipeline 
works fine.  For a few, I get scsi read errors.  I know this because the error 
messages appear in the terminal from which I run the program.  I would like to 
know about these errors in the program, but I can't figure out how to receive 
them.  I tried connecting the cdparanoiasrc element to "transport-error".  
When I do, a few "scsi_read error" messages appear in the terminal and then my 
program crashes.  Connecting to "uncorrected-error" doesn't seem to do 
anything.  I'm not even sure that either of these two signals has anything to 
do with scsi read errors.  Is it possible to catch scsi read errors?  Does 
anyone know of sample code?

I am using gstreamer 0.10 (from Python 2.7).

Jeff