Abstract: Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment of the invention includes a processor, and memory containing a client application. In addition, the client application configures the processor to: request a top level index file identifying a plurality of alternative streams of protected content, where each of the alternative streams of protected content are encrypted using common cryptographic information; obtain the common cryptographic information; request portions of content from at least the plurality of alternative streams of protected content; access the protected content using the common cryptographic information; and playback the content.

Abstract: A follower mechanism for use in a bore of an internal combustion engine, including an outer sleeve having an inner surface and an outer surface defining a pair of axially extending shaft grooves that are formed in the inner surface and are parallel to a longitudinal center axis of the follower mechanism, an inner cup including a side wall defining a pair of shaft apertures, the inner cup being slidably disposed in the outer sleeve, a shaft having a first end and a second end, each of the first end and the second end extending through a corresponding shaft aperture of the inner cup and being slidably disposed in a corresponding one of the shaft grooves, and a roller follower rotatably received on the shaft such that a portion of the roller follower extends axially outwardly beyond the outer cup.