Fortunately, the legitimate streaming industry has adapted to the demand for low-data, highly compressed video. Most major platforms now offer features that mimic the benefits of 300MB downloads without the accompanying security risks:

As 4K streaming and high-speed internet became the norm, the need for 300MB files vanished. Most of the original "4u" sites were eventually shut down by copyright authorities or abandoned. Today, the phrase survives mostly as a nostalgic reminder of the days when fitting a whole movie onto a CD-R or a tiny thumb drive was a major victory. A Note on Safety