WD硬盘出现问题，用西数提供的windlg检测结果不明白，就高手解答！

用的win8，首先是系统报错，说检测到硬盘存在问题，下面有选项：备份，稍后提示和不再提示等。备份完成后重启，出现黑屏提示，是WD硬盘的Smart报错……进入windows后运行了WD提供的windlg工具检测，结果如下：

Test Option: EXTENDED TEST
Model Number: WDC WD2500BEVT-24A23T0
Unit Serial Number: WD-WXH0AB987530
Firmware Number: 01.01A02
Capacity: 250.06 GB
SMART Status: FAIL
Test Result: PASS
Test Time: 00:03:30, June 19, 2013

Test Option:QUICK TEST
Model Number: WDC WD2500BEVT-24A23T0
Unit Serial Number: WD-WXH0AB987530
Firmware Number: 01.01A02
Capacity: 250.06 GB
SMART Status: FAIL
Test Result: FAIL
Test Error Code: 06-Quick Test on drive 1 did not complete! Status code = 04 (Unknown failed test element), Failure Checkpoint = 96 (Unknown Test) SMART self-test did not complete on drive 1!
Test Time: 00:26:27, June 19, 2013

问题来了，在EXTENDED TEST 中SMART Status是FAIL 而Test Result却是PASS？！而 QUICK TEST 两个又都是FAIL……是硬盘真的有问题了吗？怎么判断是逻辑坏道还是物理坏道？我该怎么办？

相关了解……