convert your own mp3's to the "correct" format for vshbgm.
note: the page may freeze during conversion. this is normal for large files.
sample rate: 44.1 khz
bitrate: 128 kbps or 192 kbps
format: mp3
convert locally with ffmpeg:
ffmpeg -i input.mp3 -ar 44100 -b:a 192k bgm.mp3