Friday, November 20, 2009

Undelete (from Diskeeper) can recover files and data

I've been trying some products from Diskeeper Corporation. If you delete files that are needed later...or, if someone else does...Undelete could be a savior.

Undelete uses "InvisiTasking". It runs in the background, and does not degrade the performance of a computer.

It includes Emergency Undelete, which can recover files that were deleted before Undelete was installed...if they have not been overwritten. Emergency Undelete can also be run from a CD, and USB drive.

Search Disk
You can search by file name, extension, location, locate deleted files by the date they were created or deleted, and track the owner or users who deleted the file.

Version Recovery
Undelete allows instant recovery of older ("saved over") versions of Microsoft Word, Excel and PowerPoint files. Version Recovery is integrated with Windows Explorer: just right-click on a file to recover earlier versions. Undelete will present all of the versions that are available, and allow you to open files to preview them (before you try to recover them).

SecureDelete erases files using a methodology developed for the National Security Agency and the Department of Defense. The Wipe Free Space feature overwrites free space so files can never be recovered, and there is an option to do so automatically.

Undelete replaces the Windows recycle bin with a Recovery Bin™. The Recovery Bin intercepts all deleted files, no matter how they were deleted. It has a Windows Explorer-like interface so you can navigate to files, right-click on them, and select Recover. The size of the Recovery Bin can be automatically adjusted: depending on the settings, it will purge files the Recovery Bin when it fills up on a First-In First-Out basis. If the size of a drive or volume becomes critically low, Undelete can reduce the Recovery Bin size. If more space is available, Undelete can expand the Recovery Bin to protect more files.

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Undelete 2009 Home Edition works with 32-bit verisons of Windows 2000, XP, and Vista only...it is not compatible with Windows Vista Business and Enterprise. NTFS and 16/32-bit FAT file systems can be accessed, but the 12-bit FAT file system is not supported. Primary partitions, extended partitions, logical drives, volume sets, mirror sets, RAID arrays, removable disks, and memory cards can be used with Undelete.

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Undelete Professional Edition is recommeneded for computers that are used for business, where data is stored locally and on network file servers. Administrators that are using an edition of Undelete Server can connect to computers that are running Undelete Professional Edition 2009 to access the Recovery Bins, and remotely browse and recover deleted files on those clients.
In addition to features noted in the home version, Undelete 2009 Professional Edition maintains Windows NTFS security so users can only access files for which they have permission.

Undelete 2009 Professional Edition works with 32-bit and 64-bit versions of Windows 2000, XP, Vista, and Server 2003 and 2008.

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Tuesday, May 20, 2008

CDs that don't play

A CD was created with a blank CD-R disc I had provided, and did not function in a player.

The person who was attempting to play the CD believes: "a 'CD-R' should always play in a 'CD-R' player". I was not successful in attempting to explain that, as in a lot of situations, items deemed to be of high-quality provide consistent results...

The disc I provided (for free) was the least expensive one available at the store when I purchased it. I purchased it based on cost, not quality.

The player is not, in my opinion, a high-quality unit...it's a "cheapie": Living Solutions (Atico International USA, Inc.) 60-Second CD Player with Radio (model #CD168).

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Problems are...
"...more likely to occur with car CD players and portable CD players that have less robust error-correcting abilities, older CD players, and less expensive CD players of any age...Certain brands of CD-R may cause problems for a particular CD player because of differences in dye formulations among CD-R brands..."

Glass-mastered CDs appear to be the better quality types...
"...CD-Rs, regardless of the manufacturer or method of duplication, are more likely than their glass-mastered counterparts to have compatibility problems with certain CD players, resulting in skipping, clicks, pops, or complete stops..."

"Duplicator manufacturers typically test and recommend only certain brands of blank CD-Rs for use in their machines...

http://www.vochor.com/cd_playability.html

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"The Red Book audio CD specification provides for audio discs that store up to 74 minutes of sound...The Yellow Book spec for CD-ROM provides for data CDs that hold about 650 megabytes of data.

"...audio CD-Rs can be made to hold up to 80 minutes of music, and data CD-Rs up to 700 megabytes of data.

"...there's a serious problem with such CD-Rs: they violate the standards specification in such a way that such discs won't work on some players or drives...

"For maximum compatibility, you're better off sticking to 74 minute, 650 megabyte CD-R media...

http://www.oggfrog.com/howto/cds-wont-play/

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Contemplating (Data) Mortality

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"You get what you pay for..."

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Saturday, March 1, 2008

can't burn CDs

"Kathy" called the radio show about her problems creating CDs: her Dell computer crashes during the burning process...

There could be problems and/or incompatibilities with: the software, the hardware, and/or the operating system.

Recently, my problems were due to blank CDs I had purchased years ago. I cannot burn standard audio CD files to these disks from a computer with a DVD/CD burner, but am able to using the CD burner of a different computer.

There CAN BE incompatibilities between some DVD/CD burners and blanks. If you check the documentation of the recorder/computer, and the burning software, they might recommend a specific manufacturer (and type) of blank.

Some manufacturers that are considered to produce quality media are:
Imation
Kodak (BASF)
Sony
and TDK (3M/Pioneer/Yamaha).

Also, see CD Freaks.com

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