What are the disadvantages of FLV?

FLV (Flash Video) has several disadvantages, including limited compatibility as it requires Adobe Flash Player, which is no longer widely supported in Web Browsers. Additionally, FLV files can have larger file sizes compared to more modern formats like MP4, making them less efficient for storage and streaming. Furthermore, FLV lacks advanced features found in newer formats, such as better compression methods and support for higher resolutions. Lastly, its reliance on the outdated Flash technology poses security risks and hinders its usability across various devices.