pierre_dove Report Share Posted March 10, 2005 Hello I have a question regarding burning of iso-images to a CD. I have downloaded a number of iso-files and checked their md5 checksums. They are OK. Then I have burnt them to CDs using CD Burner XP Pro version 3.0.116 (using file-‘write disc from iso file’) When I check the CDs for their checksums only 3 (out of 7) are OK. I have tried different brands of CD-R-discs and I have used different settings in the program, but for some of the iso files I can not get the correct checksum. I do get the same checksum each time however. I have a DELL computer with HL-DT-ST CD-RW GCE-8483B CD-RW unit The program reports that everything is OK after the burning. Is there anyone that can give me a hint of what is wrong? Can it be related to the problems discussed in conjunction with Linux in http://www.troubleshooters.com/linux/coasterless.htm ? Thanks Quote Link to comment Share on other sites More sharing options...
floele Report Share Posted March 10, 2005 You are not talking about DVDs? Quote Link to comment Share on other sites More sharing options...
pierre_dove Author Report Share Posted March 10, 2005 No, I am talking about ordinary CDs (for Linux installation) Quote Link to comment Share on other sites More sharing options...
floele Report Share Posted March 11, 2005 Are the CDs working at least? If so, maybe you should better try the same with our next version again and ignore that problem for the moment since I can't give you much advice on checksums. Quote Link to comment Share on other sites More sharing options...
Guest Report Share Posted March 11, 2005 The checksum numbers are valid only on the ISO file itself, not the cd once you've burned the ISO to the CD Quote Link to comment Share on other sites More sharing options...
floele Report Share Posted March 11, 2005 Is there a problem with that? I would not care if the CD works...but if you don't like other checksums I won't be able to help you atm. Quote Link to comment Share on other sites More sharing options...
Guest Report Share Posted March 11, 2005 I seem to be having similar problems. I am trying to burn cd's with Fedora Core 3 iso's. After burning the CD's, Fedora's installation program has the ability to verify the cd's at the beginning of the installation. Disc 1 passes the test, but disc 2, 3, 4 and the rescue cd fails the installation's verification test. I've created more disc 2,3 and 4 discs and they all fail the installation check. Quote Link to comment Share on other sites More sharing options...
Guest Report Share Posted March 12, 2005 This is guest again who just posted. More info. I just used DVD Decrypter to write the Fedora Core 3 disk 2, 3 and 4 from ISO and those pass the installation validation check. So, dunno what to day. I'm running windows xp pro sp2. CDBurnerXP Pro 3 (3.0.116) and DVD Decrypter (3.5.2.0) see my drive as SAMSUNG CDRW/DVD SM-3528 T804 Quote Link to comment Share on other sites More sharing options...
pierre_dove Author Report Share Posted March 12, 2005 Abount checksums: When I make the checksum test I convert the content from the CD to an iso-file and perform checksum test on that. It works on 3 of the 7 CDs, so I think the method is relevant. Further, for the 4 defective disc there are reading errors when I try to read from them. However, I can copy all files from the defective disc to the c: drive under windows, without any problems. Then I can write that structure to a CD disc. This will not give correct checksum, but there are no reading errors.. This may be a work-around in some cases... Quote Link to comment Share on other sites More sharing options...
bclintbe Report Share Posted March 29, 2005 I just tried burning a cd from an iso file. When I put the cd into any drive after finishing, some weird stuff happens: 1) In "My Computer" the rugular icon for that drive disappears and is replaced with the standard "Windows doesn't Recognize this FIle Type" icon. 2) If I just double clikc the drive still, it shows the error message... "E:\ is not a valid Win32 application" 3) I can still force it to open the cd by right mouse clicking and choosing "open" 4) The directories are there, the files appear to be there, but if I click on any of the programs I am again warned "E:\[whatever the file is] is not a valid Win32 application" Quote Link to comment Share on other sites More sharing options...
bclintbe Report Share Posted March 30, 2005 After lots of trial and error, I decided to go right back to the very start and try to figure out what the problem was. That's when I found that the ISO file I was trying to burn had been corrupted. When I got a good ISO file, everything worked fine. Quote Link to comment Share on other sites More sharing options...
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