For Mac OS X, Sony released Readers PRS-300 and PRS-600 which works under 10.7 Lion. The PRS-300 was released in 2009 as a Pocket Edition, an entry level device and the smallest reader from Sony. The screen is smaller than other readers, with no touch interface, no MP3 audio and no expandable memory. It has a resolution of 600 × 800 pixels and 8-levels gray scale, and with an internal Memory of 512MB in which 440MB is accessible. It has 3 adjustable font sizes and the battery is internally sealed with up to 2 weeks of battery life on a single charge. PRS-600 was also launched on 2009 as a Touch Edition. It replaced the PRS-700 model without the front-light feature but with a similar interface. It has a lock option with a 4 digit pin that needs to be disabled in order to mount the device via USB. The model can highlight, quote or underline the text while reading and it also has a music player via a jack. With a screen resolution of 600 × 800 pixels, the reader also has document Search Capability and a built-in dictionary from the American Oxford and the English Oxford. It has an e-Book support extension, 8-levels gray scale, 5 adjustable font sizes, an internal memory of 512MB with 380MB accessible and an expanded memory that supports Sony Memory Stick Pro DUO and SDHC up to 16 Gb.
Sony Reader is an e-book reader that uses an electronic paper display which can be viewed under direct sunlight, does not require image static maintenance through power , and it can be viewed in portrait and landscape. It displays Adobe PDF file format, ePub file format, RSS newsfeeds, JPEGs, and BBeB or BroadBand eBook file format and is compatible with the Adobe digital rights management or DRM protected PDF and ePub files that enabled users to borrow ebooks from libraries around the world. The reader supports TXT and RTF documents, but only those with Latin characters. Other character sets are not displayed correctly, the Sony models that sold in the US can only work with Latin characters. It can also play MP3 and AAC audio files that are unencrypted. The DRM rules allow e-books that are purchased to be read only on six maximum devices, and one of them should be running on personal computer. Sharing of these purchased e-Books to another person's devices and accounts is forbidden, but users may register five Readers in a single account and they can share books from within the account. Sony sells Reader e-books in the Sony eBook Library store that are available in US, UK, Japan, Germany, Austria, and Canada.
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