"Any time someone puts a lock on something that belongs to you, and won't give you the key, that lock is not for your benefit."
In this case, that Audible is selling audio books and requiring producers to use its DRM. This, of course, makes it impossible to take your purchased/licensed content to another audio book provider.
An open letter from Tim Wu to Tim Berners-Lee, urging caution regarding a proposed DRM standard for the Web (Encrypted Media Extensions), and the possible abuse of anti-circumvention laws.
A recent Hewlett-Packard printer software update changed the printers so they would not work with third-party ink cartridges. Worse, the change was made as part of a security update.
https://act.eff.org/action/tell-hp-say-no-to-drm Petition HP to fix this wrongdoing, and promise not to repeat it. They are also being asked to promise not to invoke the DMCA against security researchers who find vulnerabilities in their products.
The prohibition on reporting bugs in systems with DRM makes those bugs last longer, and get exploited harder before they're patched. Last summer, the US Copyright Office collected evidence about DRM interfering with reporting bugs in tractors, cars, medical implants, and critical national infrastructure.
https://www.eff.org/document/library-congress-2015-dmca-1201-rules
DRM exists to stop users from doing things they want to do and to stop innovative companies from helping users do things they want to do -- or would want to do, if they had the option. Your cable box, for example, will be designed to stop you from recording your favorite shows for long-term storage and viewing on the go.
The World Wide Web Consortium (W3C), the nonprofit body that maintains the Web's core standards, made a terrible mistake in 2013: they decided to add DRM
https://www.eff.org/deeplinks/2013/10/lowering-your-standards
publish directly to marketplaces run by Amazon, Nook and Kobo.
With their incompatible formats and digital locks… Funny Apple’s iBookstore isn’t mentioned.