Why can't my Wii console read the disc?

Why can't my Wii console read the disc?

Issue with a Wii RVL-001: The console and controllers can turn on and operate games in memory. I can place a disc into the console. The console attempts to read the disc, then a disc read error pops up. Rebooting does not help. It happens with multiple discs. Is this look like a full DVD drive replacement or something else? Thanks!