For downloading for testing purposes, including large files up to 1GB , several specialized sites and blog resources provide direct download links and various resolutions. Recommended Sources for 1GB+ MP4 Test Files
"Very Large File" specifically for testing download performance and high-quality movie simulations. Vodafone (xcal1) : Provides a dedicated download sample mp4 video files for testing 1gb top
One of the most common search queries among testers is: For downloading for testing purposes, including large files
: Offers direct links for 1GB MP4 files, including high-bitrate 8K variants. It also hosts larger files up to 10GB if you need to push higher limits. thinkbroadband For downloading for testing purposes