symbian

7.Symtorrent
Many of you know what is a torrent. For those who dont i ll explain it. Well some files are subjected to rules like they cannot be hosted directly on some server like movie releases, games, albums and others cause of cyber protocols. So a new system of point to point file sharing was introduced. This system does not hosts files on servers but it provides a server where file is virtually uploaded byte by byte by seeders and downloaded by leechers. Like something called sharing hence p2p sharing was invented. In pc we have softwares like Bit torrent and Utorrent whch download files via this virtual hosting kind of a system. A torrent file is in kBs and it has information of where the file is hosted virtually or known as trackers. So when you start downloading via torrents your software searches that place for seeders and connect with them and hence downloading starts. The speed of download depends on the numbers of seeders. It is interesting to note that as soon as some part of file is downloaded you dont remain a leecher and you become a seeder also as the portion you have starts getting uploaded as you must have observed.

You also might have observed that torrent downloading runs on the method of variable saving. It means as soon as you start downloading a 700mB Movie, 700 mb of your disc space is occupied by a virtual file, this virtual file is a foundation of original file.
Like purpose a torrent file has 100 parts. As soon as you start torrent space for 100 parts would be occupied on your hard disc and data downloaded corrossponding to the respective part(suppose part 35 is available and is downloaded) will replace the virtual data on its part(the virtual 35 part made on starting file would be replace be real 35 part which was downloaded).

When full download completes you become a seeder. To get most useful output select uploading speed limit to 2kBps as otherwise your bandwidth would be spent in uploading for others.

Thats how torrent downloading happens.

Symtorrent is a torrent downloader for symbian phones. It has all features except setting upload speed limit.
To download via symtorrent firstly get the torrent and add it to list via add new file in symtorrent menu. In starting torrent the software shows a process as checking hash.

This checking hash is an analysis of whole file in which software discovers which which part is downloaded and which is to be downloaded.

To download big files via symtorrent like 700Mb movies you need space more then 700Mb like about 750mb free. Start downloading. As soon as it starts downloading space is occupied the process begins. Set a setting of symtorrent that is startup hash check to enable. This means that everytime symtorrent starts. It will analyse the file. This is needed because symtorrent has a problem that after sometime of downloading the phone hangs. When you restart it and open symtorrent the full downloaded portion rolls some part back like if before hanging if 18% was completed. After restarting only about 12% downloaded will be shown. Checking hash recovers some of wasted file downloads next plot well. This means to download 100% of a big file you would have to do about 150% downloading but its atleast better than downloading via connecting to pc. You can also do like first download about 50% file on phone and then shift the file folder to pc. When you start torrent of that file in Utorrent select download location of that file directory to the one you parted. You ll see that wild Utorrent checks hash it will analyse all the data downloaded by your phone and you can continue downloading via your pc.

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