Wait, but MOBI can include images, maybe. But videos? Probably not. So maybe it's a case of confusing MOBI with MKV or MP4 formats for mobile viewing. The user might be looking for how to download Hindi MP4 videos (like movies) from a site called hindimp4.com and then convert them to MOBI for mobile devices. But that's not standard. Converting videos to MOBI isn't common.