m4v M4V is a file format developed by Apple for the iTunes store's content and is very similar to the MP4 file extension. M4V is supported exclusively by Apple devices. Other video formats like MP4 and MOV can be converted to M4V in order to run on Apple devices. The most common difference between the M4V and MP4 formats is that M4V offers DRM-Copyright Protection which prevents the copyright of media content. To play a DRM-protected M4V file the computer needs authorization by opening the iTunes account used for buying the media file. However, if the files are not protected by DRM, the user can just rename the file extension from M4V to MP4 in order for it to be recognized by non-apple devices.
ape The data compression to get a lossless audio, a file format and an algorithm used is APE, also known as Monkey's Audio. This compression can retain data and not suffer losses during its compression as opposed to the other compressions with losses such as MP3, Musepack, ACC, and Vorbis. It encodes and compresses the audio to reduce transfer time, storage space. The audio extension APE is used for an audio file to track the metadata. The format is available freely for users possessing media players and playback plugins.