The 8-track cartridge tape speed was slower ( ips compared to Fidelipac's  ips) and did not have adequate tape support pads, and thus was not "broadcast quality." The lower speed and narrower tracks in 8-track cartridges led to higher noise and reduced frequency response.
The 8-track cartridge tape speed was slower (ips compared to Fidelipac's ips) and lacked sufficient tape support pads, resulting in a lower quality broadcast. The reduced speed and narrower tracks in 8-track cartridges led to increased noise and decreased frequency response.