Samsung UN40D5550RF E-Manual page 214

● The TV cannot play MP3 files with DRM that have been downloaded from a for
pay site. Digital Rights Management (DRM) is a technology that supports the
creation, distribution, and management of digital content in an integrated and
comprehensive way, including protecting the rights and interests of content
providers, preventing illegal copying of contents, and managing billings and
settlements.
● If more than 2 PTP devices are connected, you can only use one at a time.
● If more than two MSC devices are connected, some of them may not be
recognized. A USB device that requires high power (more than 500mA or 5V)
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may not be supported.
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If an over-power warning message is displayed while you are connecting or
using a USB device, the device may not be recognized or may malfunction.
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