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File:CDRW PMA.jpg == PCA, PMA, PA, SUA == PCA: The Power Calibration Area is used to determine the correct power level for the laser. PMA: The Program Memory Area of a CDRW is a record of the data recorded on an unfinished or unfinalized disc. It is used as a transition TOC while the session is still open. PMA records may contain information on up to 99 audio tracks and their start and stop times (CD-DA), or sector addresses for the start of data files for each session on a data CD. PA: The Program Area contains the audio tracks or data files. Each session on a multi-session disc has a corresponding lead-in, PMA, PA and lead-out. When the session is closed TOC information in the PMA is written into a lead-in area and the PCA and PMA are logically eliminated. The lead-out is created to mark the end of the data in the session. SUA: The System User Area The PCA and the PMA grouped together are sometimes denoted as the System User Area. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Program Memory Area」の詳細全文を読む スポンサード リンク
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