ISSUE-147 playbackrate-undefined - Chairs Solicit Alternate Proposals or Counter-Proposals

The current status for this issue:

http://www.w3.org/html/wg/tracker/issues/147
http://dev.w3.org/html5/status/issue-status.html#ISSUE-147

- We have a change proposal to describe what a user agent should do if 
it is unable to play media at the requested rate.

At this time the Chairs would also like to solicit any other alternate 
Change Proposals (possibly with "zero edits" as the Proposal Details), 
in case anyone would like to advocate the status quo or a different 
change than the specific one in the existing Change Proposals.

If no counter-proposals or alternate proposals are received by March 
10th, 2011, we will proceed to evaluate the change proposal that we have 
received to date.

- Sam Ruby