It was proposed that only the most significant bits have error checking. It was mentioned that if an error occurs on less significant bits it is often better not to do any concealment at all. There was some degree of consensus that with an error rate of 1 x 10-11 or better, errors occur infrequently enough that having one CRC for all channels may not be cause for concern. Over short distances the error rates should be much better than this. One caveat is that at higher data rates, errors will occur more frequently.
Burst errors are common, especially in wireless.
It was recommended that the solution focus on burst errors. V0.4 uses one channel status message per group of audio channels. It was stated that this might be dangerous. One cannot send AC-3 and linear audio within one group, for example. When routing channels it would be best to have separate channel status for each channel.