Efafpmp4 -

If your inquiry is focused on the technical file format itself, represents a significant shift from traditional MP4 files: Video Tutorial - eForm 4 - ATF

A specialized version of the standard MP4 file format used for efficient internet streaming and faster processing of video data. Deep Dive into Fragmented MP4 (fMP4) EFAFPmp4

Specifically referring to the "Application to Transfer and Register NFA Firearm". If your inquiry is focused on the technical