A-440 or A440 reffers to the note A, tuned to 440 Hz. A-440 is the standard tuning pitch for most Western music and it is also known as the Stuttgart pitch.
Digital Audio Tape or simply put, DAT, is a signal recording and playback standard medium. DAT was developed by Sony and introduced in 1987. Digital Audio Tape has become the standard recording and archiving technology in professional recording environments for master recordings. The technology is based on video recorders and the 4 mm tape and also the rotary head configuration is closely similar to 8 mm from Sony.
AIFF is the abbreviation for Audio Interchange File Format. The term “AIFF” refers to that audio file format standard developed by Apple in 1988 after Electronic Arts Interchange File Format known as IFF. The extension of this standard is .aiff or .aif and it can be found as being used mostly on Apple powered computer systems. Along with SDII and also WAV, AIFF standard is leading format used by pro audio and pro video applications because it is uncompressed and also lossless.