[terry wilson] “and you will have to hit the menu button on your remote to get back out (which in itself isn’t all that bad, just a nuisance)”
Not all that bad, IF you know what to do, must people will find this more than a nuisance.
[terry wilson] “Because there are so few players”
How do you know which players have this problem (which is not a problem since you are going against spec, buttons should just somewhere) have you tested every player on the market? How you tested this in every software player with every OS that have been available for the past 15 or so years?
But this sounds this is more like a personal challenge, which is fine, if you succeed more power to you. This is a lot of effort to make a background video to continue. I hope you are getting paid by the hour to do this.
But for everyone else out there, author disc as within spec to assure the widest compatibility, you own that much to your client. Creativity needs to take in the boundaries of the format and work with it.