generate m3u's for backups of PS1 games you own the original hardware for, that are in .7z or .cue format

generate_psx_m3u.sh

#!/usr/bin/env bash
# Usage: ./generate_psx_m3u.sh
# small tweak on: https://github.com/danyboy666/Generate-PSX-m3u-playlist/blob/master/generate_psx_m3u.sh

for rom in *{.rar,.chd,.zip,.pbp,.PBP,.7z,.cue}; do
  if [[ $rom =~ ^.*[dD]is[ckCK].*$ ]]; then
    playlistName=$(echo "$rom" | sed 's/.rar//g;s/.chd//g;s/.zip//g;s/.pbp//g;s/.PBP//g;s/.7z//g;s/.cue//g;s/\s[\(][dD]is[ckCK]\s[0-9]\{1,2\})//g')
    echo -e "rom: $rom"
    echo -e "playlist: $playlistName"
    echo "$rom" >> "$playlistName"".m3u"
  fi
done

what I was going for:

• retains other stuff in brackets, e.g. (VR-Disc), (v1.1)
• slightly catering for trash roms named badly
• handle 7z
  • damn, psx cores don't load 7z

e.g. output

Metal Gear Solid (USA) (v1.1).m3u
    Metal Gear Solid (USA) (Disc 1) (v1.1).7z
    Metal Gear Solid (USA) (Disc 2) (v1.1).7z

Metal Gear Solid - Integral (Japan) (En,Ja).m3u
    Metal Gear Solid - Integral (Japan) (En,Ja) (Disc 1).7z
    Metal Gear Solid - Integral (Japan) (En,Ja) (Disc 2).7z

Metal Gear Solid - Integral (Japan) (VR-Disc).m3u
    Metal Gear Solid - Integral (Japan) (Disc 3) (VR-Disc).7z

Resident Evil 2 - Dual Shock Ver. (USA) (Claire).m3u
    Resident Evil 2 - Dual Shock Ver. (USA) (Disc 2) (Claire).7z

Resident Evil 2 - Dual Shock Ver. (USA) (Leon).m3u
    Resident Evil 2 - Dual Shock Ver. (USA) (Disc 1) (Leon).7z

I'm happy enough with how that's behaving, although I'm open to convincing there's a better way (perhaps a per game behaviour)