First, you need to clarify what it is you're trying to play. There are four (that I know of) video optical disk formats:
- Laserdisc - Back in the 1980s, large LP Record sized disks playing standard definition videos.
- DVD - Also back in the 1980s, but still the current format for standard definition videos.
- HD-DVD - Failed standard for high definition videos. Think of the Betamax format in the Video Tape Era.
- Blu-Ray - Current High definition format for videos.
Laserdiscs are obsolete and were never designed for PCs. These things pre-dated PCs. A DVD-ROM drive has been a staple of PCs since the mid-90s up until the mid 2010s, With the appropriate software and codecs, you could play standard DVDs on your PC. If you had a decent graphics card (these days, most any graphics solution) it would upscale the standard definition video format to play on a high definition screen.
HD-DVD and Blu-Ray are both true, high definition video formats. In the High Definition video war, the Blu-Ray format won out and HD-DVD went by the wayside. Your standard PC DVD-ROM drive will not play Blu-Ray discs. You need an actual PC Blu-Ray disk drive and well as the appropriate software to play Blu-Ray movies.
So if you're just wanting to watch regular DVDs on your PC, you can do that. You just need the correct software to do so. Windows Media Player or VideoLAN's VLC can play standard definition videos and your PC should be able to upscale then so they're viewable on your HD screen.
If you're wanting to watch actual hi-def videos (Blu-Ray), then you would need a PC Blu-Ray drive and the appropriate software (VLC can do it, I believe).
-Wolf sends