The.notebook.2004.pl.720p.brrip.xvid.ac3-dustnwind -

This naming convention follows standard "Scene" tagging rules used for digital video files:

The video codec used to compress the movie. XviD is an older format that allows for small file sizes while maintaining decent quality. The.Notebook.2004.PL.720p.BRRip.XviD.AC3-DustnWind

The movie title and its original theatrical release year. also known as Dolby Digital

A "Blu-ray Rip" meaning the source for this file was a previous Blu-ray encode (likely a BDRip), rather than the original disc itself. The.Notebook.2004.PL.720p.BRRip.XviD.AC3-DustnWind

Indicates Polish language support, likely through either a dubbed voice-over (lektor) or hardcoded subtitles.

The audio format, also known as Dolby Digital , which supports up to 5.1 surround sound.