You mean that 10% of an MDs capacity is wasted in LP mode due to lack of planning!?
Yes. Sony defined a 2 bit field in the original MD specification to indicate non-standard track codings, allowing players to ignore unknown track types (see the MDLP-mode bit in the fragment headers). Unfortunately, non-MDLP units seem rather to ignore the mode bits and will try to play the MDLP audio anyway.
