Does a karaoke disk work in normal DVD player?

Yes, most karaoke discs are compatible with standard DVD players. These discs typically contain digital audio and video files in formats like DVD-Video or Video CD (VCD) formats, which are recognized by most DVD players. You can insert the karaoke disc into your DVD player and play it just as you would a regular DVD movie, usually accessing the karaoke functionality through the player's menu or a dedicated karaoke button on the remote control.

However, it's worth noting that some older or less versatile DVD players may not support the specific karaoke features found on certain karaoke discs. These features might include on-screen lyrics, vocal reduction, and interactive scoring. If you have a specific karaoke disc or player in mind, it's a good idea to check the disc packaging or the player's user manual for compatibility information before using it.