The software would look for these sectors when the program was loading and would stop loading if an error code was not returned when accessing these sectors. These were sectors on the disk that were intentionally unreadable by the disk drive. On Atari 8-bit computers, the most common protection method was via 'bad sectors'. Special nibble-copy programs such as Locksmith and Copy II Plus could sometimes duplicate these disks by using a reference library of known protection methods when protected programs were cracked they would be completely stripped of the copy protection system, and transferred onto a standard format disk that any normal Apple II copy program could read. The standard Apple II copy programs could not read such protected floppy disks, since the standard DOS assumed that all disks had a uniform 35-track, 13- or 16-sector layout. It was also discovered that many floppy drives did not have a fixed upper limit to head movement, and it was sometimes possible to write an additional 36th track above the normal 35 tracks. In addition, tracks did not need to be perfect rings, but could be sectioned so that sectors could be staggered across overlapping offset tracks, the most extreme version being known as spiral tracking. This allowed complex disk-based software copy protection, by storing data on half tracks (0, 1, 2.5, 3.5, 5, 6.), quarter tracks (0, 1, 2.25, 3.75, 5, 6.), and any combination thereof. Google is no doubt aware of this workaround and will likely patch it at some point.On the Apple II, unlike modern computers that use standardized device drivers to manage device communications, the operating system directly controlled the step motor that moves the floppy drive head, and also directly interpreted the raw data, called nibbles, read from each track to identify the data sectors. The downside is that you’ll have to add the period to each URL, but the option to watch without ads and without installing anything is pretty sweet either way.Īnd you might as well take advantage of it while you can. It also blocks cookies, making this trick especially handy if you want to keep YouTube from tracking the content you’re watching. It doesn’t just stop the pre-roll ads, either - it also breaks the ones that pop up in the middle of a YouTube video. Well, it turns out that adding a period causes there to be no host name match, which in turn “breaks” the page in a way that still allows the video to play but removes the ads. This hack is so simple that you might be wondering how on earth it could possibly work. This hack works for all types of videos available on YouTube as long as you’re on the desktop or mobile site in your browser. But once you add a period at the end of the original URL ( ), no more ads.
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