It can reduce file sizes by around half. The .zip format uses lossless compression. With this form, the file decompresss to provide an exact duplicate of the compressed file, with the same quality.

But how does it actually work? In simple terms, file compression reduces the size of a file without losing important data. There are two main types of compression: lossless and lossy.

The decompressed file and the original are identical. All compression methods used to compress text, databases and other business data are lossless.

Examples of lossless compression include Dolby TrueHD and DTS Master Audio, found on Blu-ray, and Apple Lossless compression, used to convert CDs to compressed digital files.

Lossless compression for music is not that different from the types of compression used for data and graphics. Lossless compression can shrink music files by between 40 percent and 75 percent ...

Lossless audio is higher quality, but most listeners won't be able to notice a difference compared to high-quality lossy formats. Compression makes audio files easier to store and transfer, and ...

This compression may be lossless, such as in png files, or lossy, as in jpg files. Lossless photo compression works similarly to zip and rar compression: it packs data with a reversible algorithm.

Most published comparisons of lossless audio compression systems compare the average compressed bit rate, because this is often the most relevant issue for an audio file that is simply going to be ...

A compression technique that does not decompress digital data back to 100% of the original. Lossy methods can provide high degrees of compression and result in smaller compressed files, but some ...