I have a number of unnamed components in my about this mac system information report. They seem to be related to quicktime. Can I reinstall quicktime? Are these files a problem?

:

Type: scdi

Subtype: vide

Manufacturer: appl

Flags: 0x10000000

Description:

Resource Path: /System/Library/Components/QuickTimeAudioComponents.component

Did apple ship unnamed components or have I been hacked? I'd like to try reinstalling quicktime 10.4. I'm running el capitan.