Guest Anthony Buckland Posted August 1, 2008 Posted August 1, 2008 The subject line may seem like a very odd question, but ... I'm making my first acquaintance with large-capacity SDHC cards as data storage devices. Using an 8Gb Lexar card in an Optex USB2.0 adapter, I've tried three methods of copying data from my VAIO desktop (WinXP Media Center Edition with SP3, up to date) to the card: Send To, Copy and Paste, and XCOPY in command mode. In a sense, each method is a variation on copying and pasting. And with each method, once I get past a couple of GBy, I start getting errors -- corrupted files, or actual Delayed Write Failed errors. Does copying and pasting have limits to the amount of data that can be reliably handled, at some number of GBy, or should I be considering poor quality in the SDHC card or the adapter it's communicating through? Should I just think of high-end SDHCs of a presently unreliable medium? Thanks for any thoughts.
Guest Gerry Posted August 1, 2008 Posted August 1, 2008 Re: Does copy and paste have limits in XP? Anthony Is the card formatted as FAT32? Maximum file size FAT32 = 4 gb. -- Hope this helps. Gerry ~~~~ FCA Stourport, England Enquire, plan and execute ~~~~~~~~~~~~~~~~~~~ Anthony Buckland wrote: > The subject line may seem like a very odd question, but ... > I'm making my first acquaintance with large-capacity > SDHC cards as data storage devices. Using an 8Gb > Lexar card in an Optex USB2.0 adapter, I've tried > three methods of copying data from my VAIO desktop > (WinXP Media Center Edition with SP3, up to date) > to the card: Send To, Copy and Paste, and XCOPY > in command mode. In a sense, each method is a > variation on copying and pasting. And with each > method, once I get past a couple of GBy, I start > getting errors -- corrupted files, or actual Delayed > Write Failed errors. > > Does copying and pasting have limits to the amount > of data that can be reliably handled, at some number > of GBy, or should I be considering poor quality in > the SDHC card or the adapter it's communicating > through? Should I just think of high-end SDHCs > of a presently unreliable medium? > > Thanks for any thoughts.
Guest Anthony Buckland Posted August 1, 2008 Posted August 1, 2008 Re: Does copy and paste have limits in XP? "Gerry" <gerry@nospam.com> wrote in message news:%23WUgvA68IHA.1592@TK2MSFTNGP04.phx.gbl... > Anthony > > Is the card formatted as FAT32? Maximum file size FAT32 = 4 gb. > > > -- > > > > Hope this helps. > > Gerry > ~~~~ > FCA > Stourport, England > Enquire, plan and execute > ~~~~~~~~~~~~~~~~~~~ > > > Anthony Buckland wrote: >> The subject line may seem like a very odd question, but ... >> I'm making my first acquaintance with large-capacity >> SDHC cards as data storage devices. Using an 8Gb >> Lexar card in an Optex USB2.0 adapter, I've tried >> three methods of copying data from my VAIO desktop >> (WinXP Media Center Edition with SP3, up to date) >> to the card: Send To, Copy and Paste, and XCOPY >> in command mode. In a sense, each method is a >> variation on copying and pasting. And with each >> method, once I get past a couple of GBy, I start >> getting errors -- corrupted files, or actual Delayed >> Write Failed errors. >> >> Does copying and pasting have limits to the amount >> of data that can be reliably handled, at some number >> of GBy, or should I be considering poor quality in >> the SDHC card or the adapter it's communicating >> through? Should I just think of high-end SDHCs >> of a presently unreliable medium? >> >> Thanks for any thoughts. > > Yes, it's FAT32, but no individual file I tried to put on it exceeded 1.2 GBy.
Guest TechX Posted August 1, 2008 Posted August 1, 2008 Re: Does copy and paste have limits in XP? Sounds like you might have bad data, bad HD with bad sectors, or bad card. Trying buring the data to a disk then put that disk in another machine and see if you can move it back and forth. Check your system log to see if your getting and redundant cycle write read errors. good luck! -- TechX Posted via http://computerhelpforums.net Forum to USENET Gateway
Guest Bruno Posted August 1, 2008 Posted August 1, 2008 Re: Does copy and paste have limits in XP? "Anthony Buckland" wrote: > The subject line may seem like a very odd question, but ... > I'm making my first acquaintance with large-capacity > SDHC cards as data storage devices. Using an 8Gb > Lexar card in an Optex USB2.0 adapter, I've tried > three methods of copying data from my VAIO desktop > (WinXP Media Center Edition with SP3, up to date) > to the card: Send To, Copy and Paste, and XCOPY > in command mode. In a sense, each method is a > variation on copying and pasting. And with each > method, once I get past a couple of GBy, I start > getting errors -- corrupted files, or actual Delayed > Write Failed errors. > > Does copying and pasting have limits to the amount > of data that can be reliably handled, at some number > of GBy, or should I be considering poor quality in > the SDHC card or the adapter it's communicating > through? Should I just think of high-end SDHCs > of a presently unreliable medium? > > Thanks for any thoughts. I don't think it's Windows' fault since you can copy and paste much more that 8GB to a USB hard drive. Something could be wrong with the card reader or its driver, the card itself, or the USB port. I have a cheaply-made HP laptop and after about two years, the three USB ports stopped working properly (bad physical connections) one after the other. A port would suddenly stop working for a few seconds then would start working again. I eventually took the laptop apart and replaced one connector, but before I did I'd regularly get "delayed write failed errors" after a few minutes when saving files to my external drive. You might want to connect the reader to a different USB port to see if it helps.
Guest Anthony Buckland Posted August 2, 2008 Posted August 2, 2008 Re: Does copy and paste have limits in XP? "TechX" <TechX.3dh0iz@nntp.nospam.local> wrote in message news:TechX.3dh0iz@nntp.nospam.local... > > Sounds like you might have bad data, bad HD with bad sectors, or bad > card. Trying buring the data to a disk then put that disk in another > machine and see if you can move it back and forth. Check your system log > to see if your getting and redundant cycle write read errors. good luck! > ... Thanks to you and the other responders. The problem has been solved. It was a case of a bad card. My USB slots are fine, other removable media work fine, and the SDHC card misbehaved with two separate reader/writers from different manufacturers. The error phenomena included corrupted file contents, corrupted file names, ridiculous output from Properties on the card (such as one or more hundreds of GBy on an 8 GBy card), and inability to reformat sometimes except in Manage on My Computer. Aside from considerable time consumed, no problem, I'm way inside the take-back-to-the-store time bracket.
Guest Spiral Posted August 3, 2008 Posted August 3, 2008 Re: Does copy and paste have limits in XP? Anthony Buckland wrote: > > Thanks to you and the other responders. The problem has been > solved. It was a case of a bad card. My USB slots are fine, other > removable media work fine, and the SDHC card misbehaved with > two separate reader/writers from different manufacturers. > > The error phenomena included corrupted file contents, corrupted > file names, ridiculous output from Properties on the card (such > as one or more hundreds of GBy on an 8 GBy card), and inability > to reformat sometimes except in Manage on My Computer. > > Aside from considerable time consumed, no problem, I'm way > inside the take-back-to-the-store time bracket. Nice to read closure once in a while...
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