Images with fewer colors will compress more efficiently under LZW compression.

A GIF graphic is unable to have more than 256 colors but it can have fewer colors, down to the minimum of two (black and white). The idea is to lessen the amount of colours in a GIF image to the minimum number necessary and to therefore remove stray colors that are not required to represent the image. GIFs are able to hold multiple bitmaps of up to 256 colors each, using LZW (Lempel Zev Welch - a simple form of file compression that removes inefficiencies in the data storage without losing data or distorting the image) compressed raster data to minimize file sizes. The GIF file format was invented by Compuserve for their online service, but they made the specifications publicly available. It uses the lossless data compression technique which reduces the file size without any impact on the quality. It also supports animations and whenever you see a logo or other sharp edged line art then you are probably dealing with the GIF format. This file format supports up to 8 bits per pixel therefore giving an image the ability to contain 256 distinct colours chosen from the 24-bit RGB colour space. such as MP3 or MP4 in the best available quality up to 8K for video or 320 Kbps for audio. The GIF file format is a type of bitmap image and has become popular due to the growth of the internet. This tool can also convert hosted (online) video to mp3.

Detailed information on the MP4 File Format.

The only official filename extension for MPEG-4 Part 14 files is. A separate hint track is used to include streaming information in the file. This online video converter allows you to convert MOV to MP4, FLV to MP4, AVI to MP4, WEBM to MP4. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet.

It is most commonly used to store digital video and digital audio streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. MPEG-4 Part 14 or MP4, formally ISO/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4. Since stores like iTunes uses this container format, and it is used with iPod and PlayStation Portable (PSP), MP4 files have become more common. MP4 is a container format that can store video, audio and subtitle data (as well as more depending on content). MP4 files (MPEG-4 Part 14) are multimedia files.

Online mp4 bitrate converter