I'm using Nero Ultra to transcode some files (128k M4A) into something that my '03 model Alpine CDA-9815 can play. Acoustic perfection is not important in this case, but I'd like for it to sound better than AM radio.
I tried copying the M4A to WMA format, using "Encode Audio Files" from the Smart Start screen. The deck reported "Unsupported" when it tried to read the WMA files. Taking the files back to the PC and playing them with WMP 10, it seems that the files were encoded with the WMA 9.1 codec.
Theoretically, WMA is backwards-compatible, isn't it? Why can't my deck (WMA8-certified) play these files? Can I force Nero to use an older WMA codec manually?
