Hi Leandro, Is there an entry in your history for the upload? What file format does it show? Is there any chance your original file was zipped? If Galaxy detected it as a zip file on upload, it may have unzipped it and taken the first file in it as the dataset. That's at least the version of your problem that I've run into before. Specifying the file format manually (rather than choosing Auto-detect) may help if it's a similar problem. I suspect the correct solution is to write a sniffer for your datatype to help ensure it is identified correctly by Galaxy, but I haven't tried this yet. Best of luck, Eric ________________________________________ From: galaxy-dev-bounces@lists.bx.psu.edu [galaxy-dev-bounces@lists.bx.psu.edu] on behalf of Leandro Hermida [softdev@leandrohermida.com] Sent: Friday, September 16, 2011 9:42 AM To: Galaxy Dev Subject: [galaxy-dev] uploading binary files checksum changes, Galaxy doing something to file? Hi all, We tried to find something in the docs and mailing list no luck. We created a new datatype the is a straight subclass of Binary and then when we upload such a file in the Galaxy UI and check the checksums between the original file and the file located in the Galaxy database/files/... directory their checksums are different! What are we doing wrong? We simply want Galaxy to upload and no touch the file at all. regards, Leandro ___________________________________________________________ Please keep all replies on the list by using "reply all" in your mail client. To manage your subscriptions to this and other Galaxy lists, please use the interface at: http://lists.bx.psu.edu/