PC's DVD Player Does Not Recognize Certain Discs

I've had difficulty Googling for people with similar issues, so I'm going to bother you folks again.

The Problem: Approximately 50% of DVDs (movies) are not recognized (as in the computer thinks I inserted nothing). The discs work on other players. I'm also quite certain it was not always this way. For example, it's not recognizing Children of Men, and I want to say I've watched this disc on this machine. (It's not a region-encoding issue.)

What I think caused the problem: I tried just about everything when dealing with my 100% disk use issue, and I suspect I monkeyed with something that messed with the DVD player. I didn't notice it right away because I had been primarily relying on streaming services. When I open Device Manager, go to DVD/CD-ROMs, and click on the Events tab, it logs three timestamps for 18:53 on 9/27/2019 (nearly simultaneous):

Description: Device migrated.
Infomration: Device SCSI\CdRom&Ven_hp&Prod_CDDVDW_SH-216BB\4&181aa5b9&0&020000 was migrated.

Last Device Instance Id: SCSI\CdRom&Ven_hp&Prod_CDDVDW_SH-216BB\4&181aa5b9&0&020000
Class Guid: {4d36e965-e325-11ce-bfc1-08002be10318}
Location Path:
Migration Rank: 0x0
Present: true
_____________________________

Description: Device Configured (cdrom.inf)
Information: Device SCSI\CdRom&Ven_hp&Prod_CDDVDW_SH-216BB\4&181aa5b9&0&020000 was configured.

Driver Name: cdrom.inf
Class Guid: {4d36e965-e325-11ce-bfc1-08002be10318}
Driver Date: 06/21/2006
Driver Version: 10.0.18362.1
Driver Provider: Microsoft
Driver Section: cdrom_install
Driver Rank: 0xFF0005
Matching Device Id: GenCdRom
Outranked Drivers:
Device Updated: false
Parent Device: PCI\VEN_8086&DEV_1E02&SUBSYS_339A103C&REV_04\3&115 83659&0&FA
_____________________________

Description: Device Started (cdrom)
Device SCSI\CdRom&Ven_hp&Prod_CDDVDW_SH-216BB\4&181aa5b9&0&020000 was started.

Driver Name: cdrom.inf
Class Guid: {4d36e965-e325-11ce-bfc1-08002be10318}
Service: cdrom
Lower Filters:
Upper Filters:
_____________________________

I've checked my web-browser's history to see what I was doing at the time listed, but it shows no activity hours prior and hours after. I'd guess that I was updating Windows 10 while away from home.

Any suggestions are kindly appreciated.

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