Don't let the Longhorn monicker fool you—this has nothing to do with Windows Vista. It's yet another flash based PMP from Asia. The Longhorn M16 has a 16:9 image ratio on a 3.5 inch TFT screen. It supports up to 2 GB of SD card memory, and enjoys long walks on the beach with the MP3, WMA, MPEG4, JPEG, BMP, and GIF formats.
You can also use this to record video from TV/DVD/VCD/DV into MPEG4 format, and then upload the files to your computer using the USB 2.0 connection.
The M18 is just like the M16 except has a larger battery and a 4 inch screen.