I think the way you are thinking depends on your target customers, that is if you have targets. You sound like you are developing this as a hobby. I wish you good luck.

Do you have plans to support SACD image files (.iso) in the near future?

This was the only reason I haven't purchased MM. It's almost absurd to see that it's still not implemented. Listening to digital download albums through sorting the 'recently added' (which seems it still has to be created by the user instead of default) by creation date of their folders is the best ...