MTS is a video file format needed to play high resolution videos. Such files require AVCHD technology. This format supports 720p resolution and 1080i resolution. Files with the MTS extension are opened using applications installed on Panasonic and Sony high-resolution camcorders. Company data and developed this format. They are the holders of a general patent for the use of the extension. Appliances from Canon and Hitachi also apply this format. MTS is a type of video file that is popular. He found application in the Blu-ray Disc MPEG-2 Transport System. This is an advanced version of the MPEG-2 Transport Stream format for DVDs, Blu-Ray discs, solid state drives or hard drives. Currently used in most modern camcorders. It will not be a mistake to say that this is an analogue of high quality Full HD video standard. The use of the MTS format can be explained by the fact that, as a rule, cameras record on a removable SDHC memory card, and not on the internal memory of the device, which usually does not happen. This approach provided an opportunity to simplify the design of devices and significantly reduce their size.
ALAC is the format of a small specialized program called an audio codec. Its main task is to compress a file with digital music without losing its quality. The name of the format created by Apple's IT giant is Apple's abbreviation Lossless Audio Codec. This format may also be called ALE (from Apple Lossless Encoder). Files in this format can play devices even with limited computing resources - such as an iPod. When compressing a file in this format, it is approximately 40-60% of the original file. Now almost every multimedia player based on the libavcodec library is able to play ALAC format files.