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Weird capacity problem


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*sigh* so it's back again...


From ImgBurn:


Current Profile: CD-R


Disc Information:

Status: Empty

Erasable: No

Free Sectors: 250,320

Free Space: 512,655,360 bytes

Free Time: 55:39:45 (MM:SS:FF)

Supported Write Speeds: 10x, 16x, 24x


ATIP Information:

Start Time of LeadIn (MID): 97m15s17f

Last Possible Start Time of LeadOut: 79m59s70f




From DVDInfoPro:


Media Information


Format Capacity Blank Disc

Free Blocks 512655360

Free Capacity 488.91MB(512.66M)

Media Type CD-R

ATIP Start Time of Lead In (Media Code) 97m15s17f

ATIP Last Possible Start Time of Lead Out 79m59s70f

Manufacturer Name Ritek Co.

HD-BURN Certified YES

Available Write Descriptor CLV 24.0x 3600KBps

Available Write Descriptor CLV 16.0x 2400KBps

Available Write Descriptor CLV 10.0x 1500KBps



Can someone explain to me how 80 min. CD-R's can only have 512Mb free space?


A little background:


I modified the letter, icon and label of the drive.

Previously, I could use a custom drive label, with no problems. But, if I also modified the icon, Windows XP seems to identify all CD-R media as having 512Mb of free space, even though it says that it has 80 minutes free. As of last night, it seems to be broken again. The only thing different about last night was the 3 updates that MS pushed out. I don't know anything about how SPTI works, but I'm hoping that someone here does, and can help shed some light on why Windows has no problems recognizing DVD sizes, but borks on blank CD-R sizes.

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With ImgBurn open in Write mode and a blank CD-R in your burner, please post all the text shown in the Information pane. By the way, ImgBurn gets this info directly from the drive, so it seems your burner needs a firmware update.

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Filter Driver Load Order - ImgBurn v2.4.2.0



Upper Device Filter: redbook

Upper Class Filter: [None Found]

Device: CD/DVD-ROM Device

Lower Class Filter: [None Found]

Lower Device Filter: imapi


Filter Name: redbook

File Name: C:\WINDOWS\system32\DRIVERS\redbook.sys

File Version: 5.1.2600.5512 (xpsp.080413-2108)

File Description: Redbook Audio Filter Driver

Product Name: Microsoft

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It does it on any brand: RiDATA, Verbatim, HP.


The drive is obviously capable of querying media, as it just flips out with the combinations of modifying the icon and the label.


What I'd like to find out is why.


EDIT: All CD-R media is properly recognized on other burners.

Edited by sorewinner
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