Big files in the cloud

So here is the first real idea I post on this blog. By now most people (among my friends, at least) use Dropbox, Google Drive or/and a similar cloud storage. We often share (completely legally downloaded, of course) movies by simply putting them there as it is more comfortable than physically transferring them. Such big files often take a long time to upload, and also a lot of space.

Since there aren’t too many movies in the world, why don’t they store the hash of every big file, and whenever someone wants to upload one, they could check whether someone already has it in their system? This checking could involve a random algorithm to make 99.99999999999999999999999999999999999999999999999999999999999999999% sure there is no mistake. So why don’t they do it? I suspect they don’t as I’ve never encountered it.

Then there are several ways to enhance this idea. Like deciding who pays for the space, or maybe if many users have it, it could be free for all. Also, the system could check whether two files differ only in their title or in some other small portion and would store only the extra difference.

Good idea/bad idea?


2 Responses to “Big files in the cloud”

  1. jurgen Says:

    megaupload used to do this when they were very popular 3-4 (?) years ago

  2. domotorp Says:

    Yeah, I am pretty sure most of the ideas I write will turn out to be known already. It also makes sense that megaupload used to use it as they were specialized in movie sharing. But why is no one using it now?

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: