At present, most BT download tools already support reading and writing files in blocks, such as Bitcomet. In the settings, the memory size is allowed to be adjusted, and the default value is about 50M. So it won't read and write disks continuously, and it won't bring a lot of workload to the hard disk, so it won't be as scary as it is said on the Internet.
Download tool is a kind of software that can download information resources such as text, image, video, audio and animation from the Internet more quickly. The reason why the download tool is used to download resources quickly is because the technology of "multi-point connection (subsection download)" is adopted, which makes full use of the excess bandwidth on the network; The technology of "breakpoint continuous transmission" is adopted to continue downloading at any time after the last stop, which effectively avoids repeated work. The download time of the downloader is greatly saved.