DTS-HD Master Audio is a lossless audio codec found on many devices. It is often found with Blu-ray and is the standard Blu-ray lossless audio format.

.WAV is Window's native lossless audio format
.AIFF is Apple's native lossless audio format
.MP3 is a common compressed audio format
.OGG is slightly less common
There are many many more

No, AVI is not a lossless format. AVI (Audio Video Interleave) is a container format that can contain audio and video data compressed using various codecs, some of which may be lossy.

To cut an audio file, there are many methods available. If you want to do it without download, try an online audio cutting tool, like Online Audio Trimmer. If you want to do it with lossless quality and great precision, try a lossless audio cutter, like Joyoshare Media Cutter.

LPCM, also known as linear pulse-code modulation, is a method that is used for encoding audio information in digital form. It is commonly used for lossless encoding in a compct disc using the Red Book standard.