Convert amv to otb

What is the difference between .amv and .otb?

Description: An AMV file is a video saved in the Actions Media Video file format, which is used by some Chinese portable media players. It contains a compressed, low-resolution (96x96 to 320x240 pixel) video.; The OTB (Nokia Over The Air Bitmap Image) file format is a type of image file developed for use on Nokia mobile devices. These files are specifically optimized for efficient transmission and display on Nokia phones, particularly older models. The OTB format is designed to be compact to facilitate over-the-air (OTA) transmission, which was an essential feature in the era of limited bandwidth and data transfer capabilities. The format supports monochrome graphics, making it suitable for simple images like icons and logos.