Here's a proper link to Canon's Cinema RAW Lite Plugin for Final Cut Pro

[rs-eos]

The link that Apple provides in a Final Cut Pro support document is linking to a bad page at Canon Europe.

Here's a link that works in case anyone needs it: EOS C70 Cinema RAW Lite Plugin

[JFoss]

Is there reason Canon Europe supports the R5C but when I look at the USA site this plugin says its only supports the R5??

Also; on the USA site under the C70 it states 

The following environment is required to be able to handle 5.5K RAW(CRM), 5.9K RAW(CRM) clips.

 Does that mean it will not process the 8K CRM files of the R5 or R5C??