(Note: File sizes are estimates based on typical variable bitrate settings for high-quality 1080p HEVC releases. 4K UHD releases would be significantly larger, around 40-60GB for the season).
While season 1 was released on 4K Blu-ray and is available in 4K on HBO Max (now Max), the first season's CGI was originally produced at a lower resolution compared to the later seasons. Boris FXhttps://borisfx.com
: H.265 offers better compression efficiency compared to H.264, which means that the file size of the same video content can be significantly reduced while maintaining similar video quality.