Thats a CD-rom driver file, you sure your using a 98 bootdisk and not a 95 ?
The Windows 98 Startup disk contains generic CD-ROM drivers that come in handy to let you access the CD-ROM drive.
But, that's not the case with the Windows 95 Startup Disk. It does not contain CD-ROM drivers by default. To access your CD-ROM drive using the Windows 95 Startup disk, you will have to undergo a slightly involved procedure of copying and modifying certain files. Here's the nitty-gritty:
Insert the Startup disk in drive A.
Copy the CONFIG.SYS and AUTOEXEC.BAT files (these are files that store the system Startup information) on to the Startup disk. These files are present in the root (C:\) directory.
Next, you'll need the CD-ROM drivers. At this stage it really helps to have the CD-ROM driver diskette and manual that came with the drive. If unavailable, you'll need to scan through your hard disk to locate the driver files. These drivers are usually available in a folder named after the manufacturer of the drive. (Check for folders named 'Creative' or a more generic name like 'CD-ROM' etc.). The driver files could be something like SBIDE.SYS, CD-IDE.SYS, CDROM.SYS and so on.
Once you have located the CD-ROM driver file, copy it to the Startup disk.
Next copy the MSCDEX.EXE file, that is present either in the Windows\Command or in the DOS folder on your hard disk, to the startup disk. This file is used to access your CD-ROM drive.
Now, you'll need to use a text editor like Notepad (Start - Programs - Accessories - Notepad) to edit the CONFIG.SYS and AUTOEXEC.BAT files on your Startup disk. Alternatively, you can use any other text editor that you are comfortable with.
If available, the CD-ROM manual should list out the exact command statements to be included in these files. But then, things don't fall into place so smoothly, do they? If no manual is available to guide you, try these following commands:
Open the CONFIG.SYS file in the text editor.
The CONFIG.SYS file may include a command statement that looks something like this: device=C:\path\SBIDE.SYS/D: MSCD001. (Here 'path' implies the exact location (folder) where the CD-ROM drivers are installed.)
If not included, add the following command to the file, else edit this statement to read: device=SBIDE.SYS /D: MSCD001
Save the changes to the CONFIG.SYS file and close it.
Next, you'll need to modify the AUTOEXEC.BAT file accordingly. The AUTOEXEC.BAT may contain a command statement that looks something like this: C:\path\MSCDEX /D:MSCD001 /V
Add or change this statement to read: MSCDEX /D:MSCD001 /V
Save and close the AUTOEXEC.BAT file.
Your Windows 95 Startup disk is now equipped to access your CD-ROM drive too.
http://www.drd.dyndns.org/index2.html -for great boot disks
http://www.bootdisk.com to get really good boot disks..