I did a project with the Arduino Due and the libraries for the VS1053 MP3 Shield were not compatable with the Due. Are the libraries that work with the Uno compatable with the Arduino Mega?
Are the libraries that work with the Uno compatable with the Arduino Mega?
They have a higher chance of being compatible, due to them both using the same AVR core, but since internal peripherals differ slightly there is a chance that, depending on what the library does, it won't work right.
You just have to try it and see.