downloads currupt for some customers

[Carla]

Zencart
Zen Cart v1.3.7.1/v1.3.7.1

this is a music download store. running now for 12months

getting frequent emails stating "cannot extract the zip
file "corrupt".

checked FTP..... link is not broken..

attribute setting are

Title Value Action
Enable Downloads true
Download by Redirect true
Download by streaming true
Download Expiration (Number of Days) 2
Number of Downloads Allowed - Per Product 4
Downloads Controller Update Status Value 4
Downloads Controller Order Status Value >= lower value 2
Downloads Controller Order Status Value <= upper value 4
Enable Price Factor true
Enable Qty Price Discount true
Enable Attribute Images true
Enable Text Pricing by word or letter true
Text Pricing - Spaces are Free 1
Read Only option type - Ignore for Add to Cart 1



is there anything I can do to fix this problem..
When i go in and purchase same track as customer, I dont have any problems with download...

what will download for one customer may not downlaod for another...

does anyone have a solution for my problem, i am tired of sending tracks manually... .... help is appreciated..

carla

[RodG]

getting frequent emails stating "cannot extract the zip
file "corrupt".
<snip>
what will download for one customer may not download for another...

does anyone have a solution for my problem, i am tired of sending tracks manually... .... help is appreciated..

carla

How large are the downloads?

Some possible causes are:

1. The downloads are being aborted before they complete. This can be caused by lost connections, buggy FTP software and impatient users.

2. Most file systems have practical limits on the file sizes they can hold. From memory, a FAT16 can only hold files less than 2Gb, FAT32 is limited to 4Gb

What program are you using to create the zips? Try zipping with a different program. Not all .zips are created equal.

Sadly, there really are a number of things that can cause problems, and some of them are out of your control.

Hope this is of some little help.

Cheers
Rod

[Carla]

thankyou for your reply
as the files download for some and not others.. i dont think they are 2 big.
could try another Zip program.. but fear i could end up with more problems.. i think it might be just out of my control.. instant download system has many glitches...how can i have a holiday when this is going on...

[RodG]

thankyou for your reply
as the files download for some and not others.. i dont think they are 2 big.

You can't really know that unless you know where the people downloading them to. Are you 100% sure that the people having problem aren't trying to download them to a floppy disk? (they probably aren't, but they could be trying to use a low capacity USB stick or similar).

could try another Zip program.. but fear i could end up with more problems..

Or it may solve the problem.

i think it might be just out of my control.. i

It is only out of your control if you let it be so. If you do nothing then the problem will remain. Only by doing *something* will you manage to take care of the issue.

Instant download system has many glitches...

Yes, but most, if not all of them can be fixed or minimised.

how can i have a holiday when this is going on...

That is something you can only answer yourself. Shut your store down perhaps? Or *maybe* simply using a different zip program will provide a solution?
Perhaps ask a few simple questions from the people that have problems, eg, find out what program they are using to download, or what program they are are using to unzip the files with. If you find they all happen to be using version 123 of program XYZ you will at least be able to advise others to avoid using those program for your files.

Doing nothing other than stating it may be out of your control doesn't help you or your customers. You have to do *something*, and if you do make thing 'worse' you can always revert back to the 'not as bad'.

Cheers
Rod

[zilog357]

This often happens to me too.

My files are less than 200 KBytes and many are even less than 100 KBytes. The same here as she explained; what works for one customer, it does not for other and I find myself sending the product manually.

I used 7-Zip, Ultimate Zip and WinZip alternatively for compressing the small PDF files (Wiring Diagrams) and this happens regardless of what compression program I use.

The thing is that if I download the product my self, it downloads and unzips no problem.

I have enabled "Download by Redirect" and disabled "Download by Streaming".

I ended up extending to 30 days the download availability and up to 3 times, to see if this minimizes.

If anyone have any other idea it will be much appreciated.

Richard

[zilog357]

Thinking about this, I guess that many people is used to offline Windows environment and automatically make double-clicks instead of single-clicks on Internet buttons.

I did the test and if a double click was done instead of a single one, the server tried to do the two actions, instead of accepting just the first click.

Is there a script or code to prevent the system, in this case, Zencart, from taking action on more than just one click, once a prior click was performed in the same button in a certain time frame?

I don't know, just guessing here, but double-clicking is the only reason left in my mind after trying to resolve this situation.

Richard