I added both the Easy YouTuber Video Downloader 6.5 and the Video Downloader Helper and tried both out by downloading the same hour long YouTube video on my new Firefox browser. The YouTuber Downloader was amazingly fast (made me wonder about quality) while the Downloader Helper took a little time, about the same as Roxio's Video Copy and Convert would have (if it worked). The Youtuber Downloader produced a MP4 Video file of 150 MB, frame rate of 25 f/sec, data rate of 290 kbs, and bitrate of 390 kps. The Downloader Helper created a Movie Clip file of 338 MB, frame rate of 24 f/s, data rate of 807 kbs, and bitrate of 871 kbs. Although it would appear that the Downloader Helper product would be higher quality, I didn't notice it on comparing the videos, possibly because of the quality of the YouTube video was not that high. I didn't like the Downloader Helper's logo being in the corner of the video, but would have to pay $28 something to upgrade to get rid of it. I chose what I thought was the highest quality choices on file formats for both downloads. Would like to think I'm getting the highest quality video possible but am perplexed by the differences in bitrates.