South Korean consumer electronics manufacturer LG Electronics has produced several 7- and 8-inch portable DVD players over the years. Often they are released simultaneously and nicknamed the LG 7 and LG 8, respectively. The 7-inch LG DP771 and 8-inch LG DP781, were introduced in 2007. Although their screen sizes are different, there's little other difference between them.
Size and Weight
The LG DP771 has a 7-inch color screen with thin-film transistor active matrix and liquid crystal display technologies. The screen of the LG DP781 is 8 inches. The LG DP771 is 7.7 inches wide, 6.8 inches deep, and 1.5 inches high, with a weight of 1.6 lbs. The LG DP781 is 8.5 inches wide, 1.3 inches thick, and 7.1 inches high, with a weight of 1.8 lbs.
Media
The LG 7 and LG 8 portable DVD players can play the following optical disc formats: CD, CD-R, CD-RW, DVD, DVD+R, DVD+RW, DVD+R DL, DVD-R, DVD-RW and DVD-R DL. Thus, not only do they play DVDs of various kinds -- including double-layer ones (those designated as "DL") -- but they support audio-based optical discs as well. Also, the DP771 and DP781 adhere to the National Television System Committee and Phase Alternating Line analog color television systems, and they enable a 16-to-9 image aspect ratio.
Audio Capabilities/Miscellaneous Features
The stereo audio system of the LG DP771 and DP781 has a dynamic range and signal-to-noise ratio of 85 decibels, and it uses Dolby Digital and DTS for its digital audio format output. The portable DVD players also support the Windows Media Audio and MP3 formats. Other features include photo playback; progressive scanning; and 1x, 4x, and 16x picture zoom modes.
Connectors and Power
Each LG DP771 and DP781 has a four-pin USB port, headphone jack, digital coaxial audio output, and a set of RCA connectors for composite video and stereo audio. Also included is a DC power input for plugging in an adapter. The adapter powers the player and charges the battery, with the LG 7 getting up to four hours of operation and the LG 8 offering five hours.
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