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¥[¤J¤é´Á: Oct 2003
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1. Jitter
2. PI&PO
3. C1&C2&C3
4. Q-CODE
5. TOC
==================================================
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«ØÄ³¼Ó¥D¥h³oùØ¬Ý¬Ý .....

·s¤â¾Ç²ßªººô­¶¡G
http://www.cd-dvds.net/index.php

1.jitter¥i¥H¥h¬Ý³oùØ¡G
http://www.thg.com.tw/storage/02q4/.../yamaha-04.html

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­n¤F¸Ñ°ª­µ½è¿N¿ýªº­ì²z¡A­º¥ý±o¥ý½Í½ÍÂø°T¡]jitter¡^¡C¦b¥úºÐ¤W¼Æ¦ì­µ®Ä¸ê®Æªº0»P1¬O¥Ñ§Ú­Ì©Ò¼ôª¾ªº¥W¼Ñ©M¥­­±©Òºc¦¨ªº¡A¥W¼Ñ´N¬O¸g¹L¹p®g¿N¿ý¹Lªº³¡¥÷¡C¦b³o¨Ç¸ê®Æªº®ÇÃ䦳¥Î¨Ó§@¿ù»~®Õ¥¿ªº¸ê°T¡C²z½×¤W³o¨Ç¥]¬A0©M1ªº¸ê®Æ¤£·|¦³¿ù»~¡A¤£¹L¨C´Ú¹q¤l³]³Æ³£·|²£¥Í¤zÂZ©M¤£³W«hªº²{¶H¡A¤]Åý¨Æ±¡½ÆÂø¤Æ³\¦h¡C¦b¿N¿ý®É¡A¦³®É­Ô·|µo¥Í©Ò¿×ªºC1©MC2¿ù»~¡A³o¤]¥¿¬O§Ú­Ì­è­è½Í¨ìªºÂø°T¡C
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2.PI&PO¤Ñ©ü¦a·t¤j¤j¦³¸ÑÄÀ¹L¡G
http://forum.pcdvd.com.tw/showthrea...threadid=293555

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..................
­º¥ý¥ý¸ÑÄÀ¦ó¬°PI­È,´N¬O"A row of an ECC Block that has at least 1 byte in error constitutes a PI error",
¤°»ò¬O1­Órow(¦C),´N¬O182bytes¸ê®Æ,¦Ó1­ÓECC Block¬O¥Ñ208­Órow²Õ¦¨,¦Ó¦b³o208­Órow¤¤,¥u­n¦³¥ô¦ó¤@­Órow¤¤ªºdata,¦Ü¤Ö¥X²{1byteªº¿ù»~,¨º´NºÙ¬°1­ÓPI­È(¦]¦¹¥i¥Hª¾¹D,¤@­ÓECC Block¬O¥Ñ208­Órow²Õ¦¨,¬G¤@­ÓECC Block³Ì¤jPI­È¬O208),¦ÓKProbe¬O¥H8­ÓECC Block¬°³æ¦ì(1­ÓECC Block PI­È³Ì¦h208,8­ÓECC Block³Ì¦h´N¬O1664­ÓPI­È),8­ÓECC BlockÁ`¦@ªºPI­È¤£¯à¶W¹L280
¦A¨Ó¸ÑÄÀPO­È,¡§If a row of an ECC Block contains more than 5 erroneous bytes, the row is said to be ¡§PI-uncorrectable",
¥Ñ©óDVD-ROM¦³¿ù»~ªÈ¥¿ªº¯à¤O,¦]¦¹­è­è¤W­z©Ò»¡ªºdata¿ù»~(¤]´N¬OPI­È),­Y¬O¸g¥Ñ¥úºÐ¾÷Ū¨ú­×¥¿«á,1­Órow¸Ì­±¿ù»~ªºdata¤´µM¶W¹L5byteªº¸Ü,¨º´N²£¥Í¤@­ÓPO­È,³o¸Ì¥ý¸ÑÄÀ¤@¤U,¥Ñ©ó1­Órow¬O¥Ñ182byte²Õ¦¨,­Y¬O³o182byte¤¤µo¥Í10byte¿ù»~,¨Ì·ÓPI­Èªº©w¸q,³o´N¬O1­ÓPI­È(¤]´N¬O»¡1­Órow¤¤ªºdata¥X²{¿ù»~,¤£ºÞ¬O´Xbyte,³q³q¥u¯àºâ1­ÓPI­È),¦¹®É¸g¥Ñ¥úºÐ¾÷Ū¨úªÈ¥¿,­Y¬O­×¥¿¨ì¥u³Ñ4byte¦³¿ù,¨º«Ü¦n,´N¤£ºâ1­ÓPO­È,­Y¬OÁٳѶW¹L5byte¥H¤W¤£¯à­×¥¿,¨ºsorry,­nºâ1­ÓPO­È,¦Ó³W©w¤¤,1­ÓECC Block¤£¯à¶W¹L4­ÓPO­È,8­ÓECC Block´NÁ`¦@¤£¯à¶W¹L32
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3.¤£·|Á¿ ¡A¤ï¶Õ......

4.Q-code¦b¦¹¦³´£¨ì¡G
http://www.chickensys.com/support/s...ualdrives2.html

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¡EOne is the actual physical size of the device. For hard drives it is the actual unformatted capacity of the device. For CD-ROM's it is no more than 650mb, and it is the measure of the "written to" part of the drive, as recorded on the Q-code section of the CD itself.
.............

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5.Table Of Content (TOC)
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