> The data controller may charge up to €6.35 for responding to such a request and must respond within 40 days.

> This normally involves providing a copy of the footage in video format. ... Where stills are supplied, it would be necessary to supply a still for every second of the recording in which the requester's image appears in order to comply with the obligation to supply a copy of all personal data held.

> Where images of parties other than the requesting data subject appear on the CCTV footage the onus lies on the data controller to pixelate or otherwise redact or darken out the images of those other parties before supplying a copy of the footage or stills from the footage to the requestor. Alternatively, the data controller may seek the consent of those other parties whose images appear in the footage to release an unedited copy containing their images to the requester

I wouldn't be surprised if some video workflow products pop up to help companies comply with requests like this. For example, select the target person on video, automatically pixelate the rest, stitch together and export all clips of the target, securely mail it and log the task completion, etc.