'Subscript out of range'-problem in general

I have searched the forums for this, but I couldn't find any comprehensive explanation for this error. I have encountered this error with several dvds that were not preprocessed in any way (anydvd, maybe tho). So, I have few questions regarding this error.

1) What is this error exactly? What causes it in e.g. numenu4u?

2) The complete error seems quite cryptic. Where should I start fixing it? And what can I conclude from the error output?

3) Should I report the problems somewhere?

Relevant(?) topics:
showthread.ph...342#post610342
showthread.php?t=94366
showthread.php?t=107966

The error I got last time:

Code:
Procedure Name:Item
Module Name:SUB_STREAM

Error Number:9
Error Description:Subscript out of range
Error Source:ErrorHandler
Error Line:8
Call Stack:
SUB_STREAM--gt;Item
NewSUBS--gt

rocessSSTcan you send me all the files i need to fix. see the sticky at the top of this board for that info.

Hmmh.. The dvd has 2 menuvobs with 196mb and 15mb, but there are also 7 menuvobs with the size of 0.15mb and which have 15 blank frames. If I just decheck those, everything works.

I also checked the 0.15mb menus with pgcedit and noticed that they dont even have subtitlestreams. Is it even legal to have a menu without a substream?

I sent you mail about this.

EDIT: Back to topic.. If someone is able to answer those questions, please do so.

EDIT2: I forgot to mention that this dvd has no video_ts.vob