Please go to: http://forums.adobe.com/thread/787519?tstart=0 where you can find the answer.
By default any ACS4 acsm or URLLink is assigne only 6 hours before expiration, so, in a non modified ACS4, if you take more than 6 hours to use the link or acsm, you'll get the error E_ADEPT_REQUEST_EXPIRED. You can read the expiration date/time in acsm file if you save it to your computer and open it in a txt edit utility.
This is the right answer. Not only the http://kb2.adobe.com/cps/403/kb403936.html is the right answer. Also an expired download link or an expired acsm file will generate current message, and you must require a new link or file for a successful book download.
Robin, you are exactly right about the 6-hour time limit. I was frustrated until I read your posting. I've been trying to borrow ebooks from my local library consortium, and they only offer Adobe EPUB format books, which I can only save as ACSM files. The electronic resources librarian had been basically shrugging and telling me, "Well, Kindles just aren't supported" so I've been clawing my way to find a work-around for the problem. I'm a librarian myself, and I didn't want Kindle users to be left out.
Thanks for all your hard work!
Kindle requires his own format for ebooks, named mobi. There are some applications for converting from ePub to Mobi formats but they work only with non-secured files. If you download a secured ePub by means of Adobe Content Server you'll be unable to make the conversion. So, more than format there you must know if contents are secured by means of DRM (and DRM could be different in different ebook stores). ePub is supported by Apple (iTunes) but if you downloaded an ePub to your iPad from iTues you can't open or convert it for use with your Kindle, same thing happens with books downloaded from stores using Adobe Content Server secured books. There are some free applications for reading ACS secured books for iPad but I don't know if same thing occurs for Kindle.
Also the acsm extension meaning is Adobe Content Server Message, and a file with this extension is simply an XML file with some instructions for Adobe Digital Editions or compatible app to reach the download path for the file (ePub or PDF).
Ah, but this is where Calibre comes in. Use the right-click, convert with Adobe
Digital Editions trick (making sure you do it within 6 hours of downloading, to
avoid having the inept time out). This will open the book on ADE. Then use Adobe
Digital Editions Converter to convert it to PDF and -- this is the cool part
-- it will also automatically strip off the DRM protection. Then you can use
Calibre (a very good software package, only about $29.95, and well worth it in
my opinion) to convert it to MOBI format and load it onto a Kindle. Sure, it's a
little trouble and there's the cost of buying Calibre, but it allows Kindle
users to be able to use all those Adobe EPUB books that more and more libraries
are offering. Please note that, being a bone-headed librarian, it only took me
about 20 hours of work to figure this out, but now that I have tried it out on
several books I've downloaded from my local public library, I'm very pleased
with the results. Spread the word!
I work for a publishing company that uses ADE, and in my experience, this error message is NOT generated due to a time zone issue. It's sort of unbelievable to me that this is Adobe's official diagnonsis. When our customers get this message, it's almost ALWAYS because they clicked the download link prior to installing Adobe Digital Editions.I confirmed this with an Adobe rep using the help chat as well. It seems to be a pretty fundamental flaw with the program in general, and the Adobe rep told us that there's now way around that. It's also ridiculous, because we end up having to send our customers a new file, and Adobe is essentially charging us twice for the book.
I have the same problem too even though I tried to open the file right after I download it and my time was also correct. Therefore, I wonder if there is anyway I can fix this since I googled the solutions and there weren't any to help me.
Thank you so much!