On Thursday 06 Mar 2008, mailtoanzer wrote: > I want to make sure the user who bought the mp3 can only use it. I
You can't. MP3 has no Digital Restriction Management (DRM) features, which is why it works on anything. > One idea is don't allow the user to download the original file and > play the file directly from internet (work like a subscription > mechanism). Problem with this approach : the user always need internet > connection, loading time for low bandwidth connections.... That's the only way I can see to do it. But your user can always share their username and password, or their whole internet connection (if you lock logins to the origin IP address). What sort of threat levels are you defending against, and how valuable are these MP3s ? For instance, the major music labels are now distributing their music as MP3, obvious without DRM. Are your speeches more valuable ? -- Tom Chiverton Helping to economically introduce slick metrics on: http://thefalken.livejournal.com **************************************************** This email is sent for and on behalf of Halliwells LLP. Halliwells LLP is a limited liability partnership registered in England and Wales under registered number OC307980 whose registered office address is at Halliwells LLP, 3 Hardman Square, Spinningfields, Manchester, M3 3EB. A list of members is available for inspection at the registered office. Any reference to a partner in relation to Halliwells LLP means a member of Halliwells LLP. Regulated by The Solicitors Regulation Authority. CONFIDENTIALITY This email is intended only for the use of the addressee named above and may be confidential or legally privileged. If you are not the addressee you must not read it and must not use any information contained in nor copy it nor inform any person other than Halliwells LLP or the addressee of its existence or contents. If you have received this email in error please delete it and notify Halliwells LLP IT Department on 0870 365 2500. For more information about Halliwells LLP visit www.halliwells.com. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/flexcoders/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
