OK Here is an issue that I havnt seen yet on the forums. The current issue is that I can not download the game or any updates because after the files are downloaded impulse will always state that the files are invalid because the MD5s do not match. I would appreciate any help anyone can provide
MD5's are models... I didn't think that Demigod used them. Is there any chance you can re-download it?
Actually MD5 is a cryptographic hash function, read http://en.wikipedia.org/wiki/MD5
One of its uses is to ensure the integrity of a file. To do so, the MD5 sum of each file is calculated and compared with an official list of hashes, for example provided by the Impulse servers.
MD5 hashes not matching means that the files have been modified.
Common reasons why files get modified without explicit user action:
- Virus or other malware infecting the executables, thus modifying them
- Broken harddisk. Check the S.M.A.R.T. status of the drive and do an extended self-test. See http://en.wikipedia.org/wiki/S.M.A.R.T.
- Broken RAM, the files get corrupted before they even get written to the HDD. Especially likely if your computer frequently crashes.
- Files can also get corrupted during transfer. Horribly broken routers or a malicious ISP can be the cause. Try downloading and patching using a different connection, e.g. at work or a at a friend's home. Note that in this case playing online will certainly be interesting.
Raknor seems to have this covered pretty well..
As for the MD5's, they are also models. But was really only used in Doom3 as far as I know which is why I was confused. But yeah, hopefully that helps him
Thanks guys I appreciate the feedback. I will see if I can download them on another comp, and I will try a s.m.a.r.t. test
Do you know if you can get the file any other way than impulse?
Are there any tests for the ram?
Typically if you get a hash mismatch error during install, either your antivirus is interfering with the download or you have a malware infection corrupting them. If after a thorough scan you download with the AV disabled and it sitll does not work, try using Impulse Anywhere instead (it will need to download the entire game, though).
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