Some full forms....

A2DP: Advanced Audio Distribution Profile

VDP: Video Distribution Profile

SPP: Serial Port Profile

DUN: Dial Up Networking

FTP: File Transfer Protocol

JPEG: Joint Picture Experts Group

GIF: Graphic Interchange Format

WAR: Web Application archive

RAR: Resource Adapter archive

3GP: 3rd Generation Participation

AVI: Audio Video Interleave

WMA: Windows Media Audio

MPEG: Moving Pictures Experts Group

AMR: Adaptive Media Rate

AAC: Advanced Audio Coding

GPRS: General Packet Radio Service

WAP: Wireless Application Protocol

EDGE: Enhanced Data rates for Gsm Evolution

IMEI: International Mobile Equipment Identity

USB: Universal Serial Bus

HSCD: High Speed Cellular Data

HLR: Home Location Register

PUK: Personal Unlocking Key

tmp: temporary file

PIN: Personal Identification Number

PNG: Portable Network Graphics

Bmp: bitmap

cfg: configuration

swf: small web format

TF: Trans Flash

VGA: Video Graphics Array

QVGA: Quarter VGA

SD: Secure Device

MMC: Multi Media Card

FM: Frequency Modulation

IPTV: Internet Protocol TV

MIME Multipurpose Internet Mail Extensions

SVGT 1.1 SVG (Scalable Vector Graphics) Tiny version 1.1

XML eXtensible Markup Language

MIDI Musical Instrument Digital Interface

aa: audiable audiobooks