If you are tech-savvy, use software like youtube-dl or JDownloader (only for free, legal content) to download your purchased movies from these platforms as MP4 files. You can then remux them into MKV containers without quality loss.
When drafting a piece around the phrase you are likely targeting a specific niche of film enthusiasts looking for high-definition (HD) regional content. To make this draft effective, you should focus on the technical benefits of the MKV format and the growing popularity of Marathi cinema. Draft Outline: Mkv Marathi Movies Extra Quality
: Features many modern Marathi films with 1080p and sometimes 4K resolution options.