Some postgraduates attended the conference free by doing "volunteering work'.
For accommodation, go for the cheapest, say one or two nights which should not cost much.

There should be department fund etc for postgraduates in attending conferences.
Last resort, borrow money from your supervisor for air ticket...

Video presentation was allowed in some Japan conferences.
Perhaps there were worries about earthquake, tsunami, radiation...
Moreover, accommodations and food may be more expensive.

Yes. BilboBaggins is absolutely right that some professors may provide better or more feedback than your supervisor!

You may want to re-think this question.

1. When we present papers in conference, we may get new perspectives or feedback on our work.
2. It is good opportunity to attend conference and make new friends or even "find" future job opportunities; or potential examiners...
3. Enjoy the local attractions and food... shopping... relax... new ideas...

As mentioned earlier, we should seek first to understand, then to be understood.

There are a few things we do not know about worldaround...
1. Which year is worldaround in?
2. There is nothing wrong for first supervisor to ask for meeting in her office. From the viewpoint of supervisor, it may seem strange why meetings have been through Skype.
3. Actually, secondary supervisor could be correct to say that first supervisor is busy, and thus behaving like that. Supervisors also have their stress nowadays over funding, publications, admin...

So, worldaround could also let us know if the supervisor has been "misbehaved" for months or years.
My main point is don't over-react. It could get worse!

In fact, from now on, i feel that there should be meeting with both supervisors for the moment.

I was sick during my first conference.
I was also worried if very few attended my presentation and some professors might pose difficult questions...
Fortunately, there were at least 10 participants, and only one difficult question was posed by a professor. I did not pretend to know the answer but simply explained that there should be more research...

This professor was a journal editor and suggested me to reorganize my conference paper, and submit it to his journal.
He also gave me some advice privately after the presentation and my paper was published shortly.

In my last presentation, the room was full and it seemed well received.
However, i don't feel anything special with conference now.
It is a place for networking. The participants are more concerned of their own presentations.
Why allocate memory space for the presentations of others?

The participants rather remember your kind words or feedback on their presentations.

It is a waste to quit if there is paper published and conference papers accepted in second year.
Perhaps it is better to have no backup plan.
Conflict with supervisor is not uncommon.

Something like this...

WRONG WAY:
PhD student: “I am a nuclear physicist.”
Employer: “Oh. We’ll call you.” (Won’t call you...)

RIGHT WAY:
PhD student: “I can read schematics and troubleshoot electronics. I can make machine drawings using CAD programs and perform statistical analysis on large quantities of data. I’m not afraid to disassemble instruments to fix them or to think hard. I did all these things as part of my graduate training in physics.”
Employer: “You’re hired! By the way, why did a smart young person like you study an obscure topic like physics?”

On second thought, we should be thankful of supervisors who are not very demanding, does not bully us, and give us more freedom in our research.

The only concern is supervisor's recommendation letter should be carefully written. It should not be accidentally suggestive or saying the student is unhappy with one's supervision...

Sound like my supervisor. Actually, I also need advice on this...
She insisted to be the corresponding author for my paper which is fine.
But she submitted earlier version of my paper instead. This is so dangerous. :-(

However, she is better in presentation. So, it may not be easy to detect her weaknesses like organisation... Beside, my supervisor has some strengths such as EQ...
When my thesis was submitted, she "protected" herself by explaining to the examiner etc... that the thesis may not be ready.... But she was just doing a favour for me since I am confident of my work.

Essentially, if the thesis has minor corrections, she can claim some credits. But if the thesis has major flaws, she is already aware...

Maybe just let your supervisor know about similar websites like postgraduate forum.

one of my papers has nine pages of references; i was enjoying movies at the same time... :)

Better still, it depends on the co-authors: Nobel laureate, Field medalist, Director, Head of Department...
Or many different groups of researchers; it shows that you can work with anyone.

You should really focus on the quality of your papers.

Anyway, impact factor is also very important. Below are some examples...
1. Journal of Computational and Applied Mathematics (JCAM) (ISI impact factor: 1.048 (2008), 5-Year Impact Factor: 1.138)
2. Computers and Mathematics with Applications (CMA) (ISI impact factor: 0.997 (2008), 5-Year Impact Factor: 1.049)
3. Applied Mathematics and Computation (AMC) (ISI impact factor: 0.961 (2008), 5-Year Impact Factor: 1.124)

Perhaps you could discuss with your supervisor on certain concepts first? Let him know you have difficulty understanding certain aspects?
Then, ask your supervisor about his expectation of PhD research?

...... Finally, discuss your difficulty... (But don't reveal you have decided to quit yet!!!)
Perhaps you can also ask you supervisor to share his feeling about your progress.

When breaking news break too fast..., it can be truly heart-breaking.